mm4 notes (couldn't remember where I found them)

MEGAMAN 4 COMPREHENSIVE DOCUMENT
version 1.6 - June 2016

Writers:
	Matrixz
	MartsINY

(Looks best in monospaced font)

-- Update notes --

Corrected sprite bank pointers for Sprite Bank 4 (6C010-7000F).
Identified the usage of object IDs $39, $4B and $90.
Additions by MartsINY (lots)
	2016-06-02: Added informations on existing datas and documented more functions.
More info on Subroutine $FD17
Added width and height values for Enemy hit detection data vs. other sprites (weapons/megaman)

LEGEND :
========
RTS NUBT means the RTS of the ASM is Not Used By The following functions, so you can erase it.
RTS UBT means the RTS of the ASM is Used By The following functions. So do not erase it unless you erase the following functions (or ASM)
RTS PUBT means the same as UBT, but its RTS is used by the precedent function.
RTS N means no RTS
When the RTS are used by the next functions, I write where in the ASM code under.

============================ CONTENTS =============================

 * NOTES
 * TERM DESCRIPTION
 * RAM (Memory Map)
 * ROM MAP (From start to end)
 * LEVEL BANK MAP

 * Object ID List
 * Sprite ID List
 * Unused ID's
 * Object - Vertical Wall Detection ID's (For D2FC/F0F8)
 * Object Slot Usage
 * Stage Bank / Scene Bank ID's
 * Scanline Effect ID's
 * Weapon ID's
 * Sprite Tile Usage
 * Primary Graphics Load ID's
 * Sound ID's (Music / Sound effect ID's)

 * ADDITIONAL MESSY NOTES:
   * Sprite Data Formats
   * Weapon Code Procedure
   * Explosion Code Procedure
   * Kill Enemy Procedure
   * ASM explanation : Bank $3C, $805E : Crushed by a moving wall?
   * Graphics Load Data
   * Earlier Version Traces
   * ROM Version / Regional differences
   * Object/Wall Hit Detection - Object Shape Data (Vertical Hit Detection)

============================== NOTES ==============================

Offsets
-------
Two types of offsets are used in this document; ROM offset and memory offset.
Sometimes one of them are noted, sometimes both of them are noted, seperated
with a slash. (Memory address to the left and ROM offset to the right).
For those not familiar with memory offsets, if an offset in this doc is
four-digit, its not a ROM offset, unless stated as so.
The "rom offset" section is divided into sub-sections of one or more ROM banks,
where the size of one ROM bank is $2000 bytes.
"MEMORY AREA" is meant to tell what range in the NES' memory
the ROM bank(s) are loaded into when it is being used.

Level data
----------
For areas of level data, its noted as "<level data>".
Level data is always placed at the same locations within a ROM bank.
After the entire "ROM Offset" section of this document, there's
a map describing how level data is organized withing all those banks.

========================= TERM DECRIPTION =========================

Object Slot
-----------
Used to refer to a byte index in the object/sprite memory arrays.

Enemy ID / Object ID / Sprite ID
--------------------------------
All these three mean different things, and these are the terms i use to differ the three in
this document. Now to try to explain the difference.

Enemy ID
--------
Identifies the different "enemies" or other objects that can be placed in a level, as part
of level data. The Enemy ID is connected to several tables, such as HP, default speed,
Sprite ID and Object ID.

Object ID
---------
Identifies the different AI's of enemies or other objects. Also, Megaman 4 has a complicated
system of using different banks for sprite data. The bank it uses to read sprite data depends on
the Object ID, using a lookup table at $7E00A in the ROM.

Sprite ID
---------
Identifies different sprite animations for the sprites on the screen. However, there are different
banks used for sprite data, and these banks each have a set of Sprite ID's. Again, the sprite bank
used depends on Object ID, and not Sprite ID.

=============================== RAM ===============================

List of Unused Memory
-------------------------

ZP Zero use: 2C, 4F, 5F, 68, 70-7F, 98, AE, AF

ZP Relatively free:
	94 (Not used after RESET vector code.)

Temporary Memory
----------------

00-01 : Temporary - Used in all threads
02-13 : Temporary - Used only in Main thread
	02-0F : Lower-level temporary
		0F : Often use with function that return values results in Carry Flag. They make
		a ROR with it and then reuse $0F to know if the Carry was set or not.
	10-13 : Subroutine argument / Subroutine result / Counters / Higher-level temporary

These addresses are never used in NMI or IRQ.

Joypad Memory
-------------

14 : Joypad 1 - Button Push Bits
15 : Joypad 2 - Button Push Bits
  [0 = Not Recently Pushed Down, 1 = Recently Pushed Down]
16 : Joypad 1 - Button Status Bits
17 : Joypad 2 - Button Status Bits
  [0 = Not Being Pressed Down, 1 = Being Pressed Down]
  MSB
    bit0 : A
    bit1 : B
    bit2 : Select
    bit3 : Start
    bit4 : Up
    bit5 : Down
    bit6 : Left
    bit7 : Right
  LSB

Graphics Updates
----------------

18 : Palette Buffer - Write Flag (if == 1, then write Palette Buffer to VRAM. $FF is also written.)
19 : VRAM Buffer - Write Flag (if > 0, then write VRAM Buffer to VRAM)
1A : VRAM Buffer - Write Flag (Vertical NameTable Updates) (if > 0, then write VRAM Buffer to VRAM, NameTable writes are done in Vertical direction. )

1B : Auto Screen update - register
1C : Screen of Auto Screen update / Screen of Auto 32x32 Tile redraw
	If this is set to a value greater than 0 before entering weapon menu, it will draw the
	entire screen to the 2nd Nametable before gameplay resumes.
1D : Auto 32x32 Tile Draw. Value $80 or higher enables it.
	MSB
	bit0: Enable
	bit1: Destination Nametable of Draw
		0 = $2000
		1 = $2400/$2800 (depends on current mirroring)
	bit2-bit7: 32x32 Tile
		bit2-bit4: Vertical pointer
		bit5-bit7: Horizontal pointer
	LSB

1E : Enable special effect in Drill Man's Stage (???)

--

1F : Point in Level Passed
  00 : Not passed any point
  01 : Mid-Point
  02 : Boss-Point (Or for some stages, secondary Mid-Point)

  This byte has more uses than this one.

20-21 : Screen Preset Data pointer

22 : Stage Bank / Scene Graphics Bank

23 : Direction which Nametable Column of Tiles has been recently drawn.
	08 : Up
	04 : Down
	02 : Left
	01 : Right

24 : Tile Nametable Row/Collumn Counter
25 : Pixel Scroll Counter X
26 : Pixel Scroll Counter Y
27 : Megaman's X position (Copy of 330)
28 : Current Screen Position Megaman is on. (Copy of 348)
   (Not current screen Scroll-wise. For Scroll-wise current screen, see Mem $F9).

29 : 32x32 Tile location on the screen. It is used in two different events:
	1. Sprite hit detection with walls. The value is based on Mega Man or an enemy's position in a screen.
	2. Name Table updates when scrolling. The value is based on the row / collumn being updated in a screen.
	The value is used in routine $D295 as a index into the level data.

2A : Next Screen Position (Scroll Related) / Screen of Nametable updates

2B : Scroll Direction + Scroll Data Index
  b0-3: Scroll Direction
	08 = Up
	04 = Down
	02 = Horizontal
  b4-7: Current Scroll Map

2C : Never used in entire game.

2D : Number of Screens in Current Scroll Map.
2E : Current Screen Position of current Scroll Map (Scroll Related)
2F : Direction which Screen is being scrolled.
	02 : Left
	01 : Right

Megaman stuff
-------------

30 : Status of Megaman
  00 : On ground (Standing/Walking)
       OR IF STATUS WAS 01, BUT START WAS PUSHED, WHEN COMING BACK FROM PAUSE,
       STATUS WILL BE 00 EVEN IF IT SHOULD BE 00. OR MEGA MAN HIT A ROOFT.
       ALSO, IF ON GROUND WITH STATUS 06, 06 IS IN $30 THEN IT WILL BECOME 00.
  01 : Jump
  02 : Slide
  03 : Ladder Climb
  04 : Rush Marine
  05 : Wire Adaptor use
  06 : Hit by Object.
  07 : Hit by spikes/Defeated by enemy/Fell down pit.
	When hit by spike, to know if #$07 will be set in $30, it checks $3D
  08 : Boss Defeated - Warp Out
  09 : Boss Chamber - Wait for Boss to get ready.
  0A : "Ready" blink, Warp down.
  0B : Boss Defeated - Weapon Get / Warp Out
  0C : Battle with Cossack - Caught by Cossack Catcher
  0D : Cossack Stage 4 - Cossack Defeated
  0E : Cossack Stage 4 - Cossack Defeated (Dialog)
  0F : Wily Stage 3 Rematch Room Warp
  10 : Enter boss room - walk a bit forward (Used with Cockrach Twins boss)
  11 : Wire/Balloon Item achieved - Wait, then warp out.
  12 : Wily Stage 4 - Wily defeated.
  13 : MM escapes from Wily's Fortress
31 : Walking Direction (Copied to memory $420)
32 : # of Frames which Megaman's Pose should last until it returns to normal.
     (Used for Weapon Aiming Poses, etc.)
33 : Indicated if MM is shooting : 	#$00	MM is not shooting.
					#$01	MM is shooting with gun (like normal weapon)
					#$02	MM is shooting with arm (like Metal Blade)

34 : Slide Counter
35 : Buster Charge Counter (If $35 = 5C, Full Charged Shot is ready)
36 : Buster Charge Palette set to set as megaman's palette when player releases B button.

37 : Megaman horizontal movement speed Low (ratio) (Written to $3A8)
38 : Megaman hotizontal movement speed High (pixels per frame) (Written to $3C0)

39 : Horizontal Movement Patch - Direction (Toad Man Wind and more)
	Values are as following :
		00 : Mega Man is not moved.
		01 : Mega Man is pushed to the right with values of 3A and 3B.
		02 : Mega Man is pushed to the left with values of 3A and 3B.
3A : Horizontal Movement Patch - Speed Low (Toad Man Wind and more)
3B : Horizontal Movement Patch - Speed High (Toad Man Wind and more)

3C : Megaman's Invincibility Counter - Copied to $5B8 if > 0. $05B8 is what makes him blink.
3D : Set to #$30 when Megaman hits spikes.

3E : Ring Man stage / Ring Guy / Blocked passage flag
  Determines if Megaman has destroyed "Ring Guy" in Ring Man's stage
  where it traps the level passage until you have defeated it.
  Cleared at stage init.

3F : Hatch hit flag. Cleared at stage init.
  Written $50 to when megaman hits a hatch. This is used in the scrolling code to force scrolling right to the next section.
  Note: Contains TSA type value of any hit wall, (AND #$10 != #$00)
	But only to the right of Megaman.
	Seems to only be used for the purpose of checking for hit with hatches.

--

40-4E : Seems like temporary memory, but has many different uses.

  40 : Object Hit Detection With Walls - Counter.

  41 : 16x16 Tile Type of 16x16 Tile Object has hit. (Result of D2FC).
	If hit more than one 16x16 tile type, this will tell the Type with highest value.

	So don't use it to know if a solid tile was hit, because if water was hit (#$60)
	and a solid tile (#$10) it contains #$60. But in this case, $10 contains #$70.

  42 : Object / Hit Detection temp?
	Copy of Object's Y Coordinate

  43 : In water, fall slowly.
	It's a variable used to make sure Vertical Speed is lowered more slowly when in Water. It is set to #$03,
	and then until it reached #$00, Vertical Speed is not reduced.

  44 : Seems to contain the hit block in center of MM. It is used to know when MM changes of of place (examole center touch air and middle touch water,
		then water will Splash
  45-49 : Object Hit Detection with Walls - Result Array (From $45 to $49 they contain hit block from left to right I believe)
	Most object uses only 3 ($45 to $47 like Mega Man, but Jumbig uses them all)

  45 : Temporary Store of 22 when executing weapon menu.
  46 : Temporary Store of FC when executing weapon menu. Use at some other place, like before status $30
	is set to "Ladder Climb".
  47 : Temporary Store of 1C when executing weapon menu.
  48 : Temporary Store of F0 when executing weapon menu.
  49 : Temporary Store of FD when executing weapon menu.
  4A : Temporary Store of FA when executing weapon menu.

  4B-4E : Palette Animation ID - Temporary Store
    Used to store Palette Animation ID's from 6F0-6F3 when
    temporarily turned off (6F0-6F3 is cleared), to be turned
    back on by writing them back to 6F0-6F3.
    (Used by Weapon Menu)

4F : Never used in entire game.

--

50 : Graphics Load ID to load.
51 : Current byte position in Gfx load - Relative to offset 52/53
52-53 : Graphics being loaded - Address of ID
54 : Graphics being loaded- PRG-Bank to load graphics from
55 : Graphics being loaded - Remaining Tile Counter
56-57 : Graphics being loaded - Source Address Pointer
58-59 : Graphics being loaded - Dest. VRAM Address Pointer

5A-5B : Level Hit Detection : Temporary Address to Wall Hit Detect data

5C : # of Scanlines before Scanline Effect, from NMI. (Copy of $F1)
5D : ID : Mid-frame Scanline effect to do using MMC3 Scanline IRQ's. (Copy of $F0)

5E : Used with Scanline Effect #1 in Ring Man's Stage.

5F : Never used in entire game.

--

60 : Palette Animation Handler - Index Counter
61 : Palette Animation - Temp Mem - Copy of $18 status (Palette Buffer Write Flag)

62-63 : Palette Animation handler - Temp Mem - Address of Palette Animation data

64 : Palette Fade - Palette Ignore Bits.
	(Tells Palette Fade to ignore certain parts of the palette. Must be set before fade occurs. Cleared after fade.)
	MSB
	bit0: Ignore BG Palette 1
	bit1: Ignore BG Palette 2
	bit2: Ignore BG Palette 3
	bit3: Ignore BG Palette 4
	bit4: Ignore Spr Palette 1
	bit5: Ignore Spr Palette 2
	bit6: Ignore Spr Palette 3
	bit7: Ignore Spr Palette 4
	LSB

65 : Vertical Scrolling (Written to 2005, copy of FA)
66 : Horizontal Scrolling (Written to 2005, Copy of 69 or FC depending on Scanline IRQ Effect in use.)
67 : Source Nametable to Display - OR'ed with Memory $FF and written to $2000 every Vblank.
	Copy of FD normally, copy of 6A if Scanline IRQ Effects 3, 6, 7, 9, $A, or $B are used.

68 : Never used in entire game.

69 : Written to 66 if Scanline Effect ID is #3
6A : Written to 67 if Scanline Effect ID is #3

6B : If set (not 0), disable handling of sprite animations. Sprites are still rendered.
	Counter of Health/Weapon capsule increase amount.

6C-6F : Cossack Stage 4 end scene - Dialogue memory.
  6C : Dialogue ID
  6D : Character Pointer
  6E-6F : Offset of Dialogue ID	(THEY ARE WRITTEN BEFORE THE ARE READ, SO YOU CAN USE THEM AT OTHER PLACES, FOR TEMPORARY USE)

--

70-7F : Never used in entire game.

Threads
-------

80-83: Thread 1 Register
  80 : Thread 1 Status:
	01: Has called back by $FF1C, waiting for Vblank.
	02: Returned from NMI, returning from thread handler.
	04: Vblank occured, execution to proceed.
	08: Recently been registered.
  81 : Thread 1 Frame Wait Counter
  82 : Thread 1 Stack Pointer
84-87 : Thread 2 Register
  86 : Thread 2 Stack Pointer
88-8B : Thread 3 Register (Not used)
8C-8F : Thread 4 Register (Not used)

90 : Thread handler memory
91 : Thread handler memory (thread counter?) / (Joypad update flag?)
       Denotes that Joypad is already updated and doesnt need 2nd update.
92 : Frame Counter - Increased in NMI.

93-94 : Thread Code Address for new thread to be registered.
  93 : Also has a different use in thread handler routines
  94 : Never used after boot-up (Last use is before copyright screen fades up.)

--

95 : Manual Frame Counter, not increased in NMI.

96 : Object Slot Counter - For Drawing Sprites

97 : Sprite DMA Buffer RAM - Free sprite 8-bit Pointer / Sprite Counter

98 : Never used in entire game.

99 : Global Gravity Force (Always $40.)

9A : VRAM update suspend flag. Used to synchronize sprite DMA updates and VRAM updates.

9B : Enable Scanline IRQ Effects? (Depending on value, write is done to $E000 / $E001)

9C-9D : Scanline IRQ Effect - ASM Address

9E : Stage Enemy Counter - Next Enemy (first to init by forwards movement)
9F : Stage Enemy Counter - Previous Enemy (first to init backwards movement)

A0 : Item/Weapon In Use (Weapon ID)

A1 : Extra Lives
A2 : # of Energy Tanks


A3-A8 : Slippery Block / A4 has another function

A3 : It's used for Slippery Block.
	Contains direction bits of slipping direction
A4 : If set, MM gets hit by spikes?
	Also in cossack Stage 1 set when MM is on slippery block (as long as he touches, even if a little, a slippery block,
	it contains #$B0.
A5 : Slow Down
	This variable is always minimum #$01. Then, for every turn while walking in the same direction on ice, it is
	increase by #$01, up to #$1A Max. Then when deccelerating, it is diminished by #$01 every turn. this value is
	used to be substracted to $3A every turn when deccelerating

A6 : This variable is like the high speed of A5 if A5 would be a low speed. But since max value of A5 it #$1A, it never
	happen. It was probably used when programming but was never used in the end.


A7 : Used with "Slippery" block type.
	Horizontal Movement Patch for Slippery Block, set in $3A (Low)
A8 : Used with "Slippery" block type.
	Horizontal Movement Patch for Slippery Block, set in $3B (High)

A9 : Clear Bits for Regular Stages
  MSB
    bit0 : Skull Man
    bit1 : Dive Man
    bit2 : Dust Man
    bit3 : Ring Man
    bit4 : Pharaoh Man
    bit5 : Drill Man
    bit6 : Toad Man
    bit7 : Bright Man
  LSB

AA : Clear Bits for Cossack / Wily Stages
  MSB
    bit0 : Wily 4
    bit1 : Wily 3
    bit2 : Wily 2
    bit3 : Wily 1
    bit4 : Cossack 4
    bit5 : Cossack 3
    bit6 : Cossack 2
    bit7 : Cossack 1
  LSB

AB : Wily Stage 3 Warp Pointer.
AC : Wily Stage 3 Rematch Warp Room - Robot Master Clear Bits.
  (Cleared at Stage Clear along with $100-$11F.)
  MSB
    bit0 : Dust Man (Lower-Right)
    bit1 : Ring Man (Right)
    bit2 : Pharaoh Man (Upper-Right)
    bit3 : Toad Man (Center-Right)
    bit4 : Dive Man (Center-Left)
    bit5 : Skull Man (Lower-Left)
    bit6 : Bright Man (Left)
    bit7 : Drill Man (Uppwer-Left)
  LSB

AD : Suspend Megaman's Movement by # frames.
  (Used in Bright Man boss battle)

AE-AF : Never used in entire game.

--

B0 : Megaman's HP
Weapon Energy - Array:
  B1 : Rush Coil
  B2 : Rush Jet
  B3 : Rush Marine

  B4 : Toad - Rain Flush
  B5 : Wire Adaptor
  B6 : Balloon Adaptor
  B7 : Dive - Dive Missile
  B8 : Ring - Ring Boomerang
  B9 : Drill - Drill Bomb
  BA : Dust - Dust Crusher
  BB : Pharaoh - Pharaoh Shot
  BC : Bright - Flash Stopper
  BD : Skull - Skull Barrier
  BE : Set to #$9C when opening weapon's menu.
       This is simply used to draw the energy bar
       below "M.Buster" (using the same method as for the
       other energy bars). The buster bar is always full
       in the weapon's menu ;)

BF : Robot Master HP - This is a copy of $467 (or $466 in some cases)
     used to draw the Boss energy bar.

Music / Sound
-------------

C0 : Sound routines memory.

C1-C7 : Sound routines memory

C8 : BGM Tempo Low Counter
C9-CA : BGM Tempo
CB : BGM Transpose
CC : BGM Fade Down / Up Speed (Set to Activate)
CD : BGM Fade Depth

CE-D0 : Sound routines memory
  CE : Sound's priority. Useful if in certain case you want a specific sound to crush another one.
D1-D5 : Sound Effect stuff..
D6 : Sound routines memory - seems to be 00 most of the time..
D7 : Sound routines memory - also seems to be 00 mostly.
D8 : Sound routines memory - same.

D9 : Current Sound ID playing (Music)
DA : Sound ID Init Array Counter (after init?)
DB : Sound ID Init Array Counter
DC-E3 : Sound ID Init Array
  E0 : Sound ID

-------------

E4-E7 : Random Numbers
  E4 : Also written to outside random generator
  E6 : Also written to outside random generator
  E7 : Also written to outside random generator

E6-E7 : Temp Values Used In Weapon Particle Hit Detection..
	Also Temp Mem in Scrolling Nametable Updates.

E8-E9 : NMI return address store/backup - used with stack manipulation in NMI.

EA : If set (not zero) : Disable all writes to PPU registers and disable Scanline IRQ effects.

EB : Object (ASM) Object Slot Counter

EC : Copy (Backup) of $F6

ED : Backup of X Register (Used by $FF5C Routine.)
EE : Backup of Y Register (Used by $FF5C Routine.)

EF : Y Coordinate to give sprites below coordinate background priority. (00 = disable)
	See C86B. For every stage, this table is looked to set $EF

F0 : Mid-frame Scanline effect# to do using MMC3 Scanline IRQ's.

F1 : Scanline IRQ Effect - # of Scanlines before Start - Copied to 5C.

F2 : Value which has been recently written to $8000 (MMC3 Control Register).
F3 : Bank which has been switched into MMC3 Bank A ($8000 - $9FFF) - Copy of F5 at bankswitch.
F4 : Bank which has been switched into MMC3 Bank B ($A000 - $BFFF) - Copy of F6 at bankswitch.
F5 : Bank to Bankswitch to - MMC3 Bank A ($8000 - $9FFF)
F6 : Bank to Bankswitch to - MMC3 Bank B ($A000 - $BFFF)
F7 : Flag - Bankswitching in Progress? (If doing bankswitch, set to 1)
	Sound handling in NMI/Vblank is delayed to after bankswitch if this is set. (See below.)
F8 : Flag - Handle sound immediately after next bankswitch.
	The sound handling done in NMI/Vblank sets the MMC3 bank registers
	directly, and needs F7 to be clear. If it isnt clear (bankswitch in progress), F8 will be
	set instead of handling sound at that moment.
	Then, when the NMI returns, the bankswitching routine will check F8 after fullfilling
	the bankswitch, and if set, branches to $FF5C which then calls the sound routines.
	In simplier words, it assures that sound is updated once every Vblank. :p

F9 : Current Screen Position (Seems independent from Memory 28)
FA : Vertical Scrolling - Copied to 65.
FB : Set to 00 at Stage Start, other than that, dont know if its used.
FC : Horizontal Scrolling - Copied to 66 and 25 (Some Scanline IRQ Effects causes 66 to be overwritten)

FD : Source Nametable to Display - (Bits 6/7 of PPU Control Register 0) - Written to 67 but not used if specific Scanline IRQ Effects are active.
	0 : Display Nametable at VRAM $2000 (Normal)
	1 : Display Nametable at VRAM $2400
	2 : Display Nametable at VRAM $2800 (Set to for Weapon Menu)
	3 : Display Nametable at VRAM $2C00

FE : Written to $2001 (PPU Control Register 1) every Vblank.
FF : AND'ed with #$78 and written to $2000 (PPU Control Register 0), then OR'ed with
	67 and written to $200 again, both every Vblank.

100-11F : Stage - Pickup Item Bits
  [Ever noticed when Megaman dies and starts from a continue point,
   some picked up items like 'E' tanks doesnt exist anymore?
   This array sets bits to register these things. ]

120-123 : Rainbow bars memory : Draw register
	Is $80-$FF when a bar is active.
	If value is $C0-$FF, it will draw to the screen.
	bits 2 to 7 holds the screen position which the bar exists,
	but the value never seem used for anything.
124-127 : Rainbow bars memory : Nametable access address High
128-12B : Rainbow bars memory : Nametable access address Low
12C-12F : Rainbow bars memory : Index to TSA of level data, to draw to the screen.

130-132 : Energy Bar Enable. (If >$80, draw Energy Bar.)
  Memory Byte to use for Source is ($B0 + ([Value] AND $7F))
  130 : Megaman
  131 : Weapon
  132 : Boss

133-134 : Wait Counter? Used when MM achieves Wire Item
	Also used when Mega Man falls in a pit. They will be counted if $30 has the value 07, 08, 11 or 13.

135-137 : In-Gameplay Palette Fading registers.
	135 : Init Register
	136 : Frame Counter
	137 : Current Value to Subtract from Palette

138 : Currently Selected Weapon/Item in Weapon Menu. Used to keep memory of cursor
	Values :
		00 : Mega Buster
		01 : Flash Stopper
		02 : Rain Flush
		03 : Drill Bomb
		04 : Pharaoh Shot
		05 : Ring Boomerang
		06 : Dust Crusher
		07 : E-Tank
		08 : Dive Missile
		09 : Skull Barrier
		0A : Rush Coil
		0B : Rush Marine
		0C : Rush Jet
		0D : Wire Adaptor
		0E : Balloon Adaptor

139 : Weapon Menu - Previous selection.
	See values of $0138. Values are the same.

13A : Rain Flush Sprite Effect - Enable/Count Register
13B : Rain Flush Relative X Coordinate Register
13C : Flash Stopper Frame Counter Low
13D : Flash Stopper Frame Counter High
13E : (?) Has with rising/sinking water in Dive Man's stage to do.
	Also, Y Pixel where MM falls or gets out of water.
	Also used by Dust Man's moving ceiling.

13F : ?? Used by Dust Man's moving ceiling.

140-142 : ?? Used by Dust Man's moving ceiling.
  140 : Shootable Block Hit - X screen on which the weapon met the block
  141 : Shootable Block Hit - Copy of $29 at hit..
  142 : Shootable Block Hit - 16x16 Block index of 32x32 tile which is hit. (0-3)

143-144 : Counter until light turns back on automatically, after shooting lightbulb bot.

145 : Toad Man boss battle uses this.
	If >=$10, Rain Flush effect will use different sprite tile and palette. (Used when Toad Man casts
	rain flush, rather than Megaman.)

146 : Boss Object Slot index.

147 : ?? Copy of $22 when Warping back after achieving Wire Item.
	(Also copy of $22 when quitting gameplay loop.)
	Copied back to $22 when at Password Screen, in these cases:
		* After beating level.
		* Game Over.

148 : Cease MM Status Change (Mem $30) by set # of Frames. (i think)
	Setting $30 to #$11 along at least will make MM warp out of screen,
	but after this byte has been counted down to 0, decreased for every Vblank.
	(Used when Megaman picks up Balloon and Wire Items.)

149 : Used for Warps in Wily Stage 3.

14A-15F : Never used in entire game.

(160 and a few bytes on may also be never used, it depends on how deep the stack
from 17F grows.)

Stacks:
-------

<-17F : Third Stack (2nd Thread - Random Generator/Palette Animations)

<-1BF : Secondary Stack (Main Thread - Main game loop)

<-1FF : Main Stack (Thread Switch and Wait Handler)

Sprite DMA Buffer RAM:
----------------------

200-2FF : Sprite DMA Buffer RAM
	DATA FORMAT :
		Y POSITION - TILE TO SELECT - PALETTE TO SELECT - X POSITION
		PLEASE, NOTE THAT IF YOU DRAW TOO MUCH SPRITE ON A CERTAIN Y
		COORDINATE, SOME WON'T DISPLAY. THERE IS A MAXIMUM OF 8.
		Y POSITION is set to $F8 for sprites that are not used.


---------------

Sprite/Object Arrays:
---------------------

300-317 : Object ID
318-32F : X Coordinate Ratio Counter
330-347 : X Coordinate
348-35F : X Screen (Level Screen)
360-377 : Y Coordinate Ratio Counter
378-38F : Y Coordinate
390-3A7 : Y Screen
	$00 : On visible screen.
	if $80-$FF : On screen above visible screen
	if $01-$7F : On screen below visible screen
3A8-3BF : Horizontal Speed Low
3C0-3D7 : Horizontal Speed High
3D8-3EF : Vertical Speed Low
3F0-407 : Vertical Speed High
408-41F : Substance and Shape
	Object's Byte:
	MSB
	bit0: Substance (If Set, MM is damaged if hitting Object)
	bit1: Weapon damage
		If 0, Weapons are deflected (however, if the weapon is set to do no damage
			for that object, nothing happens.)
		If 1, Object is damaged by weapons (however, if the weapon is set to do no
			damage for that object, the weapon is deflected if object is set to
			visible with bit 5 of Sprite Flag (of 528). If it is invisible,
			nothing happen.)
	bit2-bit7 : Shape ID (Decides Height and Width setting of occupying space).
	LSB
	Megaman's byte in this array ($408) has no use, appearently.
420-437 : Direction Bits
	Object's Byte:
	MSB
	bit4: Up (Not neccesarily set when Jumping)
	bit5: Down (Not neccesarily set when falling from gravity.)
	bit6: Left
	bit7: Right
	LSB
438-44F : Enemy Number# of Level
450-467 : Enemy HP


468-47F : Object ASM Private Memory 1
480-497 : Object ASM Private Memory 2
498-4AF : Object ASM Private Memory 3
4B0-4C7 : Object ASM Private Memory 4
4C8-4DF : Object ASM Private Memory 5
4E0-4F7 : Object ASM Private Memory 6
4F8-50F : Object ASM Private Memory 7
510-527 : Object ASM Private Memory 8 - Seems to only be used for Mothraya and Rainbow bars

438 : ???May never be used! Play a complete game with a debugger point to know.
468 : Backup of $30 when MM is hit by enemy.
480 : Used. Purpose unknown.
498 : Has to do with Mega Man being in air. For example, when Rush Coil makes Mega Man jumps, Rush Coil increase it by 1.
4B0 : Used with Rush Jet (Status if Megaman rides on Rush Jet?)
4C8 : Used with Pharaoh Shot (Object slot of loading Pharaoh Shot?)
4E0 : Flash Stopper Counter
4F8 : Used. Purpose unknown.
510 : Used to count energy depletion of Rush Marine

528-53F : Sprite Flags
	Object's Byte:
	MSB
	bit0: Game use it : set to 1 means enemy is on visible screen, 0 if he is not.
	      For weapons, if set, it hurts enemies, else it doesn't
	bit1: Direction: 1=Face Right 0=Face Left
	bit2: 1=Sprite BG Priority 0=No Sprite BG Priority
	bit3: Apply X Scrolling when drawing sprites? (1=Yes. Probably always set.)
	bit4: If set, objects are not erased when moving out of screen. (Both Horizontally and Vertically)
		If object can hurt Mega Man, they can touch him, if they are in another screen.
	bit5: 1=Invisible 0=Visible
	bit6-7: Object Wall Bits (MM can walk on object)
		If value is 1, 2, 3, the Object have solids parts. If Mega Man hits a non solid
		parts, he ends up on top. Here are the solid parts.
		1: Top
		2: All
		3: Top, Left, Right (if hit object by under, Mega Man is replaced at a
		certain position from the block (the right, left or top)
	LSB
540-557 : Sprite's Animation
558-56F : Sprite ID
570-587 : Animation Frame Counter
588-59F : ASM - Low Address
5A0-5B7 : ASM - High Address
5B8-5CF : Invincibility Blink / Freeze Action Status
	Object's Byte:
	MSB
	bit0: Mode (1 = Freeze Action, 0 = Invincibility Blink)
	bit1-bit7: Frame Counter of Blink/Freeze
	LSB
	Notes: The freeze function is used with Flash Stopper.
	Invincibility Blink refers to when Megaman or an enemy
	gets hit and become invincible for a moment, while blinking.
	This memory range is used for both cases.
	For Mega Man to be invincible, value must be in $3C.

5D0-5FF : Never used in entire game.

---------------

600-61F : Palette VRAM buffer
620-63F : Palette Source

640-67F : Attribute Table Work RAM

680-6BF : Stage Special Mem / 2nd Attribute Table Work RAM
	Memory is used by Ring Man's Rainbow bars.
	Drill Man "Switch" Memory:
		One byte for each Screen Position from $10 to $13:
			Values:
			$00 : Is Off
			$70 : Being Turned On (Fading up Palette)
			$7F : Is On
	Dust Man Shootable Block Memory:
		In the moving ceiling section from Screen Position $0C to $11:
		Every Block in this section has each a Bit for its status in
		the memory range $680-$691, the bit is set to 1 if the block is gone.
		The bits seems to be organized into each byte representing a
		field of shootable blocks of 32 pixels width and 64 pixels height.

	Mem is cleared when entering a new Scroll Map Position

	This memory range is also used to cache Attribute Table updates for the 2nd Name Table,
	at automatic screen drawing, triggered by memory $1B.
	This is done at the moving waves of Dive Man's stage, moving ceiling of Dust Man's stage, and
	possibly other places.

6C0-6C3 : Palette Animation ID - Temporary Store
  Used to store Palette Animation ID's from 6F0-6F3 when
  temporarily turned off (6F0-6F3 is cleared), to be turned
  back on by writing them back to 6F0-6F3.
  (Debug Menu)
6C0-6CF : 16x16 Tile Return Data (Used in Screen Drawing and Updating)
	Those indications are at least true when calling $D24B. Values may have different
	uses at different times. When that function is called, $29 must contain the Structure
	position to get datas for.
	There are 4 tiles in a TSA Block. 4 TSA Blocks in a Structure. 6C0-6CF contains the 16 Tiles
	of a Structure. Here is ASM code to read tile values from the buffer for a specific TSA Block
	and tile:
		First, load Y with the index of the TSA Block (values goes from 00 to 03).
			LDY	#$00
		Then, load X with a value from the table at $D2BA with Y as the index. This gives
		the correct pointer to $6C0 for your TSA Block.
			LDX	$D2BA,Y
		Depending on which tile you want, you read from some address in $6C0 with X as the index.
			LDA	$6C0,X	;Tile 00
			LDA	$6C1,X	;Tile 01
			LDA	$6C4,X	;Tile 02
			LDA	$6C5,X	;Tile 03

		The contents in D2BA are as follows:
			Y = 00: TSA Block 00:	00
			Y = 01: TSA Block 01:	02
			Y = 02: TSA Block 02:	08
			Y = 03: TSA Block 03:	0A

6D0-6EF : Never used in entire game.

6F0-6F3 : Palette Animation ID
	If bit 0 is on, palette is animated.
6F4-6F7 : Palette Animation Frame ID
6F8-6FB : Palette Animation Vblank Frame Counter

6FC-6FF : Never used in entire game.

Sound:
------

704-727 : Sound Effect Memory.
  700-703 : Instrument

728-77F : BGM Memory
  728-72B : Channel - ??
  72C-72F : Channel - ??
  730-733 : Channel - ?? (Has with CMD #4 to do)
  734-737 : Channel - ?? (b0-1 : Duty Cycle, b2-7 : Volume?)
  738-73B : Channel - ??
  73C-73F : Channel - Pitch Tune Setting
  740-743 : Channel - Note Slide Setting
  744-747 : Channel - Note (not used for Noise channel)
  748-74B : Channel - Frequency - Low
  74C-74F : Channel - Frequency - High (Noise frq. is stored here)
  750-753 : Channel - Data Low Address
  754-757 : Channel - Data High Address
  758-75B : Channel - Octave
  75C-75F : Channel - Transpose
  760-763 : Channel - Note Length Counter
  764-767 : Channel - Note-On Length Setting
  768-76B : Channel - ??
  76C-76F : Channel - Loop Counter 0
  770-773 : Channel - Loop Counter 1
  774-777 : Channel - Loop Counter 2
  778-77B : Channel - Loop Counter 3
  77C-77F : Channel - ??

780-7FE : VRAM Buffer.
  (Used to write to Name Table VRAM, either when
   screen is off or in NMI when screen is on.)
  Format:
    The buffer is divided in chunks of strings.
    If the first byte in the chunk is $80 or more (usually $FF),
    it means to stop reading chunks from the buffer.
    Format of string chunk:
      byte 0: PPU VRAM Address High (if >= $80, stop reading buffer)
      byte 1: PPU VRAM Address Low
      byte 2: Number of Letters/Bytes to write (minus 1; if
        the value is 0, it means to write 1 tile, if value is 1,
        it means to write 2 tiles, and so on..)
      From byte 3 follows the variable-length string of bytes to write
      in sequence, (length is the value of [Byte 2] + 1)
      This is the end of the string chunk.

      DEFINITION : If changing them affect the colors, here is how they works.
      Each of those byte will define a structure
      TSA blocks' palette use. First byte decide the structure at the given
      position, then the next byte is for the structure to the right...
      Bit are as follow :
	Bit 0-1 : Palette of TSA Block down right
	Bit 2-3 : Palette of TSA Block down left
	Bit 4-5 : Palette of TSA Block up right
	Bit 6-7 : Palette of TSA Block up left


  Format, explained by interpretion in C code style: {
    unsigned char a, x, y;
    unsigned char vram_hi, vram_lo;
    x = 0;
   loop:
    a = *(0x780 + x);
    if ((a & 0x80) == 0x80) { return (0); }
    vram_hi = a;
    a = *(0x781 + x);
    vram_lo = a;
    y = *(0x782 + x);
    for ( ; y >= 0; y--) {
      a = *(0x783 + x);
      NES_PPU_VRAM[(vram_hi << 8) | vram_lo] = a;
      x++;
    }
    x += 3;
    goto loop;
  }


780-78F : Password enter temp buffer. Copied to B0-BF if password is accepted.
7B0-7CF : Temporary Store of Palette while executing Weapon Menu.

7FF : Never used.

============================= ROM MAP =============================

10 <-> 1400F - (Bank $0 <-> $9 by $2000)
----------------------------------------

CHR - Mostly Sprite Related, if not completely.

  2010 <-> 400F - (Bank $1 by $2000)
  ----------------------------------

  2210-280F : Pharaoh Man

  4010 <-> 600F - (Bank $2 by $2000)
  ----------------------------------

  ROM offset 5A10-5B0F : Part of Pre-Intro Graphics (City Scene - Explosion Sprites.)

  6010 <-> 800F - (Bank $3 by $2000)
  ----------------------------------

  ROM offset 06410-0690F : Unused
  ROM offset 07210-0760F : Sprites loaded by boss containing graphics of Mega Man,
			   they are loaded in Mega Man's PPU.
  ROM offset 07610-0770F : Sprites loaded by Pharaoh Man containing graphics of Mega Man,
			   they are loaded in Mega Man's PPU.
  ROM offset 07710-0780F : Sprites loaded by boss containing graphics of Mega Man,
			   they are loaded in Mega Man's PPU.
  ROM offset 07F10-07F8F : Spark Spine
  ROM offset 07F90-07FCF : Piranha part 1
  ROM offset 07FD0-0801F : Unused Datas

  8010 <-> A00F - (Bank $4 by $2000)
  ----------------------------------

  ROM offset 8010-900F : Mega Man & Rush for Weapon Get
  ROM offset 9210-930F : Title screen tiles, cursor tile is used in Megaman 4, all sprites are used for Rockman 4 title screen.
  ROM offset 9410-950F : Actually never used. Not referenced to by any graphics load data.

  A010 <-> C00F - (Bank $5 by $2000)
  ----------------------------------

  ROM offset A390-A3AF : Tiles for Block Platform (Enemy ID $80, Object ID $60) (used in Bright Man)

  C010 <-> E00F - (Bank $6 by $2000)
  ----------------------------------

  ROM offset C310-C40F : Piranha part 2
  ROM offset C610-C70F : Before Spikes Box, Unused Datas
  ROM offset C710-C80F : Spike Box

  ROM offset D010-D04F : Some block tiles, unused, but probably meant to be used in Drill Man's stage.
  ROM offset D310-D5EF : Mono-Roader
  ROM offset D5F0-D60F : After Mono-Roader, Unused Datas
  ROM offset D910-DB0F : Unused CHR :)

  E010 <-> 1000F - (Bank $7 by $2000)
  -----------------------------------

  ROM offset E610-E66F : Skull Launcher
  ROM offset E670-E70F : After Skull Launcher, Unused Datas
  ROM offset E710-E80F : Wheeled Skull
  ROM offset EA10-EB0F : Unused CHR - Rolling ball (?)
  ROM offset EB10-EC0F : Unused CHR - Snake, and something.

  ROM offset EE10-EF0F : Fly (Enemy ID $13) Sprite graphics.

  10010 <-> 1200F - (Bank $8 by $2000)
  ------------------------------------

  106C0-1070F : Unused CHR ? (Not sure.)
  10710-107EF : Saturn Bot
  107F0-107FF : After Saturn Bot, Unused Datas
  11D10-11E0F : Unused CHR :)
  11F10-1200F : Disappearing Block

  12010 <-> 1400F - (Bank $9 by $2000)
  ------------------------------------

  12410-1270F : Unused CHR :)

  12710-129AF : Mega Man's Head (the face on second intro screen)

  12B10-1300F : Mega Man's Head (the face on third intro screen)

  13110-1330F : Unused CHR :)

  13810-13B0F : Unused CHR :)


14010 <-> 1800F - (Bank $A <-> $B by $2000)
-------------------------------------------

[Sprite Bank 1 - Certian Enemies / Objects]

MEMORY AREA: $8000-$BFFF

1616B-1780F : Unused random data.

Tile Usage ID's:

Coordinate ID's:
2E : Unused Coordinate Data A
43 : Unused Coordinate Data B

17810-17A0F : Tile Usage - Address Table Low
17A10-17C0F : Tile Usage - Address Table High
17C10-17D0F : Coordinate Data - Address Table Low

	NOTE! THE LAST POINTER IS #$41, SO ALL DATAS AFTER 17C4F WOULD BE USABLE! TO CHECK

17D10-17E0F : Coordinate Data - Address Table High

	NOTE! THE LAST POINTER IS #$41, SO ALL DATAS AFTER 17D4F WOULD BE USABLE! TO CHECK

17E10-17F0F : Animation - Address Table Low
17F10-1800F : Animation - Address Table High

Adjust Value : C010

18010 <-> 1C00F - (Bank $C <-> $D by $2000)
-------------------------------------------

[Sprite Bank 2 (Megaman, etc.)]

MEMORY AREA: $8000-$BFFF

1807C-1808F : Tile Usage - Megaman Walk (1 animation)
180B8-180F3 : Tile Usage - Megaman Stands Still
18120-18165 : Tile Usage - Megaman Jumps
181A8-181BF : Tile Usage - Megaman leashes out item
1827E-182B3 : Tile Usage(s): ??
1868A-186E1 : Tile Usages - Balloon Item
186E2-18733 : Tile Usage - Dive Missile
18786-18789 : Tile Usage - Smal Pharaoh Shot
187C6-187CF : Tile Usage - Medium Pharaoh Shot
187DA-187ED : Tile Usage - Big Pharaoh Shot (Animation 1)
187EE-18801 : Tile Usage - Big Pharaoh Shot (Animation 2)
18FD6-18FE9 : Tile Usage - Wire Item Capsule
8FDA-8FED / 18FEA-18FFD : Tile Usage - Balloon Item Capsule
18FFE-1909F : Tile Usage - Wily saucer flying away

1974A-19771 : Coordinate - Megaman
197CE-197DD : Coordinate - Megaman
197EE-19811 : Coordinate - Megaman Facing Left
1994C-19961 : Coordinate - Megaman leashing out item
199F4-19A05 : Coordinate - Common 16x16 Sprite?
19C50-19C65 : Coordinate - Balloon Item
1A35E-1A3BF : Coordinate - Wily saucer flying away

1A6DA-1A6E6 : Animation - Megaman (Standing)

1A74C-1A752 : Animation - Unused 1
1A767-1A769 : Animation - Unused

1A818 : Times for "Ready" to blink before MM warps in. (Default = $19)
        (Changing it doesnt work. I dont know why.)
1A819 : "Ready" Blink Delay

1A85F-1A866 : Animation datas - Balloon Item

1A86F-1A87A : Animation - Dive Missile

1A888-1A891 : Animation datas - Pharaoh Shot

A8B0-A8B3 / 1A8C0-1A8C3 : Animation - Wire Item Capsule
A8B4-A8B7 / 1A8C4-1A8C7 : Animation - Balloon Item Capsule

1A9B6-1A9C5 : Animation - Wily Saucer flying away

1AA7D-1B80F : Unused space with random data.

1B810-1B987 : Tile Usage - Address Table Low
1BA10-1BB87 : Tile Usage - Address Table High
1BC10-1BD0F : Coordinate Data - Address Table Low
1BD10-1BE0F : Coordinate Data - Address Table High
1BE10-1BEBF : Animation - Address Table Low
1BF10-1BFBF : Animation - Address Table High

Adjust Value : 10010

Tile Usage:
21-2B : Unused.
40-42 : Unused.
48 : Unused.
51-54 : Unused.
57 : Unused.
62-65 : Balloon Item
92-99 : Unused.
EB-EC : Wire Item Capsule
ED-EE : Balloon Item Capsule
101-108 : Wily saucer flying away

Coordinate ID's:
20 : Medium Pharaoh Shot, Shooted left
21 : Medium Pharaoh Shot, Shooted right
22 : Small Pharaoh Shot, Shooted left
23 : Small Pharaoh Shot, Shooted right
24 : Big Pharaoh Shot Left
25 : Big Pharaoh Shot Right
41 : Balloon Item Left
42 : Balloon Item Right
97-9D : Wily saucer flying away

1C010 <-> 2000F - (Bank $E <-> $F by $2000)
------------------------------------------------

[Sprite Bank 3 - Boss, and certain other things.]


1F810-1FA0F : Tile Usage - Address Table Low
1FA10-1FC0F : Tile Usage - Address Table High
1FC10-1FD0F : Coordinate Data - Address Table Low
1FD10-1FE0F : Coordinate Data - Address Table High
1FE10-1FF0F : Animation - Address Table Low
1FF10-2000F : Animation - Address Table High

Adjust Value : 14010

20010 <-> 3600F - (Bank $10 <-> $1A by $2000)
---------------------------------------------

CHR - Stage / Cutscene Backgrounds.

  2A010 <-> 2C00F - (Bank $15 by $2000)
  ---------------------------------------

  2BD10-2C00F : This CHR is unused :)

36010 <-> 3800F - (Bank $1B by $2000)
-------------------------------------

[Intro Sequence / Ending / Credits - Code & Data]

8000 : Entry Point - Pre-Intro

8003-> : Ending/Credits programming

8458 : In middle of Credits programming

8875 -> : Background Palettes!
  88F5 / 36905 : Intro 0
  8915 / 36925 : Intro 1
  8935 / 36945 : Intro 2
  8955 / 36965 : Intro 3
  89B5 / 369C5 : ??
  369E5 : ??
  36A05 : ??
  36A25 : ??
  36A45 : ??
  36A65 : ??
  36A85 : Epilogue?
  36AA5 : ??

8E36-> : ASM - Pre-Intro

9AD4-9FFF :

38010 <-> 3A00F - (Bank $1C by $2000)
-------------------------------------

CHR - Some sprite CHR, some intro sequence CHR.

  38CB0-3900F : Before Mega Man's Body Graphics Datas of fourth intro screen
  39010-394BF : Mega Man's Body Graphics Datas of fourth intro screen
  394C0-39FDF : Mega Man's Head Graphics Datas of fourth intro screen

3A010 <-> 3C00F - (Bank $1D by $2000)
-------------------------------------

[Sound Data Bank #2]

3B9D2-3C00F : Not used.

	3B9D2-3BA70: Shadow of 3B933-3B9D1, probably from earlier version of game. Nothing new.
	3BA71-3BFFF: Shadow of Sprite Data Pointers from earlier version of game? (which were moved to different bank?)

3C010 <-> 3E00F - (Bank $1E by $2000)
-------------------------------------

[Sound Data Bank #0]

ASM:
8000: Entry Point - Frame Playback
8003: Entry Point - Sound ID Init (Sound ID in A)

3E010 <-> 4000F - (Bank $1F by $2000)
-------------------------------------

[Sound Data Bank #1]

40010 <-> 4200F - (Bank $20 by $2000)
-------------------------------------

[Bright Man Stage Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Bright Man

B700-B7FF : Mega Buster: Damage to each object ID

B800-B8C6 : Palette Animation Handler ASM
	B813-B822 : Check for each palette if it's animated. If so, call $B829.
		If #$80 (bit 7 is on), palette is animated.
	B829-B862 : Subroutine called if palette is animated.

B8C7-> : Palette Animations - Palette Sets - (Groups of 3 bytes)
	D3 is last Palette Set

BB43-BD2B : Palette Animation Data

BD2C-BD6B : Palette Animation ID Offset - Low Byte
BD6C-BDAB : Palette Animation ID Offset - High Byte

41DBD-4200F : Unused random data.

42010 <-> 4400F - (Bank $21 by $2000)
-------------------------------------

[Toad Man Stage Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Toad Man

B700-B7FF : Rush Coil : Damage to each object ID (Should be same as Mega Buster)

B800-BFFF : Unused random data.

44010 <-> 4600F - (Bank $22 by $2000)
-------------------------------------

[Drill Man Stage Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Drill Man

B700-B7FF : Rush Jet : Damage to each object ID (Should be same as Mega Buster)

B800-BFFF / 45810-4600F: Graphics (Wily Stage 2)

46010 <-> 4800F - (Bank $23 by $2000)
-------------------------------------

[Pharaoh Man Stage Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Pharaoh Man
	B5E0-B6FF : Unused.

B700-B7FF : Rush Marine : Damage to each object ID (Should be same as Mega Buster)

B800-BFFF / 47810-4800F : Dr.Wily Stage 2 Boss Tiles

48010 <-> 4A00F - (Bank $24 by $2000)
-------------------------------------

[Ring Man Stage Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Ring Man

B700-B7FF / 49710-4980F: Rain Flush: Damage/Effect to each Object ID

B800-BFFF / 49810-4A00F: Unused tile table: Japanese characters and other characters.

4A010 <-> 4C00F - (Bank $25 by $2000)
-------------------------------------

[Dust Man Stage Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Dust Man

B700-B7FF / 4B710-4B80F : Wire Adaptor : Damage to each Object ID

A800-BFFF / 4B810-4C00F: Ending Scene (Train Ride) Tiles

4C010 <-> 4E00F - (Bank $26 by $2000)
-------------------------------------

[Dive Man Stage Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Dive Man

B700-B7FF : Balloon Adaptor : Damage to each Object ID (All zero. Not used at all!)
NOTE: IF YOU WANT COLLISION TO BE CHECKED BETWEEN BALLONG AND ENEMIES, CHANGE
THE VALUE OF $FABE FOR THE BALLOON ADAPTOR ITEM.

A800-BFFF / 4D810-4E00F: Wily Stage 4 BG Tiles

4E010 <-> 5000F (Bank $27 by $2000)
-----------------------------------

[Skull Man Stage Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Skull Man

B700-B7FF / 4F710-4F80F : Dive Missile : Damage to each Object ID

B800-BFFF / 4F810-5000F : Empty, unused space.

50010 <-> 5200F (Bank $28 by $2000)
-----------------------------------

[Cossack Stage 1 Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Cossack Stage 1

B700-B7FF / 51710-5180F : Ring Boomerang : Damage to each Object ID

[Primary Graphics Load Data]

51810-5187F : Offset - Low Byte
51880-518EF : Offset - High Byte
518F0-51DD1 : Primary Graphics Load - Data
51DD2-5200F : Filler Junk (Usable for expanded Primay Graphics Load Data)

52010 <-> 5400F (Bank $29 by $2000)
-----------------------------------

[Cossack Stage 2 Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Cossack Stage 2

B700-B7FF / 53710-5380F : Drill Bomb : Damage to each Object ID

[Scroll Graphics Load Data]

B800-B84F / 53810-5385F : Scroll Gfx Load - Offset - Low Byte
B860-B8AF / 53870-538BF : Scroll Gfx Load - Offset - High Byte
B8B0-> / 538C0-> : Scroll Gfx Load - Data

	53BF1-53BF4 : Palette for Pharaoh Man (P1) BODY
	53BF5-53BF8 : Palette for Pharaoh Man (P2) JEWEL

	53BBA-53BBD : Palette for Dust Man (P1) VACCUM
	53BBE-53BC1 : Palette for Dust Man (P2) BODY

54010 <-> 5600F - (Bank $2A by $2000)
-------------------------------------

[Cossack Stage 3 Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Cossack Stage 3

B700-B7FF / 55710-5580F : Dust Crusher : Damage to each Object ID

B800-BFFF / 55810-5600F : Intro Sequence Graphics (City)

56010 <-> 5800F - (Bank $2B by $2000)
-------------------------------------

[Cossack Stage 4 Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Cossack Stage 4

B700-B7FF / 57710-5780F : Pharaoh Shot : Damage to each Object ID

B800-BFFF / 57810-5800F: Intro Sequence Graphics (Megaman is born)

58010 <-> 5A00F - (Bank $2C by $2000)
-------------------------------------

[Wily Stage 1 Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Wily Stage 1

B700-B7FF / 59710-5980F : Flash Stopper : Property/effect to each Object ID

B800-BFFF / 59810-5A00F: Intro Sequence Graphics (Train Ride)

5A010 <-> 5C00F - (Bank $2D by $2000)
-------------------------------------

[Wily Stage 2 Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Wily Stage 2

B700-B7FF / 5B710-5B80F : Skull Barrier : Damage/effect to each Object ID
	If Value is $FF, it will remove the enemy Object instantly. (Such as bullets.)

B800-BFFF / 5B810-5C00F : Empty, unused space.

5C010 <-> 5E00F - (Bank $2E by $2000)
-------------------------------------

[Wily Stage 3 Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Wily Stage 3

B700-B7FF : Unused. (Random data)
B800-BFFF / 5D810-5E00F: Ending Scene Graphics (Snowy Hill)

5E010 <-> 6000F - (Bank $2F by $2000)
-------------------------------------

[Wily Stage 4 Data]

MEMORY AREA: $A000-$BFFF

A000-B6FF : <Level Data> : Wily Stage 4

B700-B7FF : Unused. (Copy of Snowy Hill Graphics)
B800-BFFF / 5F810-6000F : Ending Scene Graphics (Train Ride BG - other half)

60010 <-> 6200F - (Bank $30 by $2000)
-------------------------------------

[Stage Select / Capcom Logo / Stage Intro / Weapon Menu / Copyright Text - Tile Assemy and Screen Data]

MEMORY AREA: $A000-$BFFF

A000-A3FF : 16x16 Tile - 8x8 Tile Assembly Data
A400-A4FF : 16x16 Tile - Palette and Substance Data
A500-A8FF : 32x32 Tile - 16x16 Tile Assembly Data
A900-B0FF : Screen Preset - 32x32 Tile Assembly Data (Space for $20 Screen Presets)
  AB00-B0FF : Unused.

B100-B2FF : Unused random data?

B500-B505 : Screen Preset Layout. This is used.
B530-B531 : Stage Layout (Not used)

B550-B551 : Stage Part : Stage BG Palette Set (Not used)
B560-B561 : Stage Part : Scroll Graphics Load ID (not used)

	Note : The Copyright screen, as well as parts of the intro, load Primary
	Scroll GFX #$55. You can change this value at 36E5F

B590-B5A3 : Copy of Rockman 4 title screen palette set. Never used.

(From B300 to B7FF there seems to be just junky expect for the above data.)

B800-BFFF / 61810-6200F : Wily Stage 3 Graphics

62010 <-> 6400F - (Bank $31 by $2000)
-------------------------------------

[Weapn Get / Password / Title Screen - Tile Assemy and Screen Data]

MEMORY AREA: $A000-$BFFF

AA00-90FF : Unused.

B100-B7FF : Copy of Wily Stage 3 Graphics, bank's stage data layered above. (The real tiles are elsewhere.)

B590-B5A3 : Some palette set. Never used.

B800-BFFF / 63810-6400F : Blank Tiles. However, this is loaded at the bottom half portion of BG Tiles for
	Wily Stage 3.

64010 <-> 6600F - (Bank $32 by $2000)
-------------------------------------

[Cossack Stage Map / Wily Saucer Scene / Wily Stage Map - Tile Assemy and Screen Data]

MEMORY AREA: $A000-$BFFF

AA00-B0FF : Unused.

B590-B5A3 : Black palette set. Never used.

B800-BFFF / 65810-6600F : Wily Stage 3 Wily Battle BG Graphics

66010 <-> 6800F - (Bank $33 by $2000)
-------------------------------------

[Intro Scene - Tile Assemy and Screen Data]

MEMORY AREA: $A000-$BFFF

B590-B5A3 : A unused copy of Bright Man Stage's 1st Palette Set resides here, for whatever reason. :)

B5A4-B7FF : Unused data.

B800-BFFF / 67810-6800F: Wily Stage 3 Wily Battle BG Graphics (for second form?)

68010 <-> 6A00F - (Bank $34 by $2000)
-------------------------------------

[Ending Scene - Tile Assemy and Screen Data]

MEMORY AREA: $A000-$BFFF

B590-B5A3 : Another unused copy of Bright Man Stage's 1st Palette Set resides here, for whatever reason. :)

B700-BFFF : Unused random data.

6A010 <-> 6C00F (Bank $35 by $2000)
-----------------------------------

[Object ASM Bank #1]

MEMORY AREA: $A000-$BFFF

A000-A02C : Cossack Defeated Scene - Dr.Wily - Object ASM (Oject ID $A5)

A02D-A33F : Wily Stage 1 Boss - eyes - Object ASM (Object ID $A6)

A340-A429 : (Tables, probably used by Wily Stage 1 Boss)

A42A-A486 : Object ASM - Wily Stage 1 Boss - Metools (Object ID $AA)
A487-

A797-> : Warp Object ASM (Object ID $B3)

A7F9 : Boss Init Object ASM

	A862 / 6A872 : Sound effect ID to play when boss charges energy

	A89F / 6A8AF : Load stage ID in Y. If it's a castle stage, load in Y $AB (Wily
	       Stage 3 Warp pointer. Uses table A8D4

	A8AC-A8B3 / 6A8BC-6A8C3 : Boss Sprite ID to set at beginning of boss battle, for each stage.
	A8B4-A8BB / 6A8C4-6A8CB : Robot Master enters chamber - Vertical Floor Hit Detection ID

	A8BC / 6A8CC : Contains the Object ID of the boss, indexed by the Stage ID

	A8C4 / 6A8D4 : Contains the Sprite ID of the boss, indexed by the stage ID

	A8CC / 6A8DC : Contains the S&S pointer of the boss, indexed by the stage ID

	A8D4 / 6A8E4 : A table used by A89F if in a castle stage (??? don't know more)

	A8DE / 6A8EE : Contains the starting horizontal speed low of the boss, indexed by the stage ID

	A8E6 / 6A8F6 : Contains the starting horizontal speed high of the boss, indexed by the stage ID

A8EE : Object ASM (unknown)

A971-A9B5 : Cossack Defeated Scene - Kalinka - Object ASM (Oject ID $A3)

A9B6-AA51 : Cossack Defeated Scene - Protoman - Object ASM (Object ID $A4)

AA52-AC12 : Wily Stage 3 Battle (Object ID $BC)

	ABA6-AC12 : Subroutine called from ADD6

AC13-AC40 : Wily Stage 3 Battle - Shots - Object ASM (Object ID $BF)

AC41-ADD5 : Object ID $C0 ASM (Wily Stage 3 Battle something)

ADD6-AE7B : Object ASM - Handler when Wily battle finished in Wily Stage 3. (Object ID $27)
	ADD6 : Main Entry Point
	AE16 : 2nd Entry Point
	AE4F : 3rd Entry Point
	AE61 : 4th Entry Point

AE7C-AEDB : Subroutine - Set explosions and mute sound when boss dies.
  Called by ADD6
  Called by B2EB
  AE81 : Called as sub by B29E

  AF94-AFD3 : Data used by AE7C.

AFD4 : Object ASM executed when boss dies.

  B0F0 : Jumped to from ASM in B0F4
B0F4-B17B : ObjASM of Object ID $4D and Object ID $2A

  B188-> : Table
  B213-> : Table

B29E-B2EA : Object ASM - Cossack stage 3 boss - Handler - Initialize 2nd Cockroach Twin (Object ID $49)

B2EB-B32B : Object ASM - Cossack stage 3 boss - Handler - Cockroach twins defeated (Object ID $4A)
	B2EB : Main Entry Point
	B2FD : 2nd Entry Point
	B313 : 3rd Entry Point

B3FD : "Shuffled Blocks" Object ASM. (Object ID $C3)
  B423 : Alternate entry point

B480-B4C2 / 6B490-6B4D2 : Cossack Stage 3 Boss - Nametable writes - VRAM buffer source.

  B4C3-B4C4 : Screen: Block data byte pointer into B4C5

  B4C5-B4EA : Block data.

B4EB-B614 : Wily Stage 4 Battle ASM (Object ID $C4)
B615-B696 : Wily Stage 4 battle - Charged Shot ASM (Object ID $C5)

B934-BFFF : Unused random data.

6C010 <-> 7000F - (Bank $36 <-> $37 by $2000)
---------------------------------------------

[Sprite Bank 4 (Many enemies, pickups, and more.)]

MEMORY AREA: $8000-$BFFF

8ACC-6ADF / 6CADC-6CAEF : Tile Usage: E-Tank

6DD0C : Coordinate: E-Tank AND Ring Man Rainbow Bars.

6F18E-6F191 : Animation - Smal Life Energy.
6F19D-6F1A0 : Animation - E-Tank
6F1C5-6F1C9 : Animation -Ring Man Rainbow Bars.

B4EA-B7FF / 6F4FA-6F80F : Unused space. (random bytes)

6F810-????? : Tile Usage - Address Table Low
6FA10-????? : Tile Usage - Address Table High
6FC10 : Coordinate Data - Address Table Low
6FD10 : Coordinate Data - Address Table High
6FE10-????? : Animation - Address Table Low
6FF10-????? : Animation - Address Table High

Adjust Value : 64010

Tile Usage ID's:
AB : E-Tank (Anim 1)
AC : E-Tank (Anim 2)

Coordinate ID's:
2F : Smal Energy Capsule

70010 <-> 7200F (Bank $38 by $2000)
-----------------------------------

[Object ASM Bank #2 (Boss ASM) / Enemy init handle Bank]

Note: This bank can be loaded into either memory range $8000-$9FFF and $A000-$BFFF,
depending on what it is being used for.

MEMORY AREA: $8000-$9FFF

8000 : Entry Point from Game Loop - Check for Enemies to Init.

810B : Read stage Enemy data, Set up Object and Sprite registers.

817F-820E / 7018F-7021E : 528() flags to set for each Enemy ID
820F-829E / 7021F-702AE : Object ID to put for stages enemies and items, indexed by Enemy ID
829F-832E / 702AF-7033E : 408() flags to set for each Enemy ID (Substance and Shape)
832F-83BE / 7033F-703CE : Sprite ID to put for stages enemies and items, indexed by Enemy ID

83BF-844E / 703CF-7045E : Enemy HP for each Enemy ID
844F-84DE / 7045F-> : Initial speed setting for each Enemy ID. Value is an index two other tables
			telling the real speed low and highs. (84DF and 84E6)

84DF-84E5 : Object Speed Setting - Low
84E6-84EC : Object Speed Setting - High

84ED-851C : Effect Sprite - 4-Color Quad Palette Index Byte
851D-854C : Effect Sprite - Palette Anim ID or 4-color Palette
	(if >= $80, its a Palette Animation ID, else its a 4-byte block index into 854D.
854D-85A8 : Effect Sprite - Palette Sets (4 bytes for each set, Omni-BG Color + 3 colors to load into chosen 4-Color quad.)

85A9-87FF : Unused random data.

MEMORY AREA: $A000-$BFFF

[Skull Man's ASM: A800-AA69]

[Ring Man's ASM: AA6A-AD27]

Object Memory:
$468,X (Private mem 1) : Status
	1E: Walk?

AA6A : First Entry Point.

Datas:
	AAB6 / 70AC6 : Delay before next movement - after shooting first Ring Boomerang.

ABEC-AC06 : Subroutine - Check if there's two Ring Boomerangs in air.

AC6C-AD27 : Ring Man's Ring Boomerang ASM (Object ID $76)

[Dust Man's ASM]

AD28-AE41 (for the end, there may be a table after, but it's the end of the AI)
AD28 : Main Entry Point.
ADD6 : Entry Point

[Drill Man's ASM: B045-B32F]

  B2E2 : Object ASM (Object ID $82)

[Bright Man's ASM]

B541 : Main Entry Point? (Wait for delay)
B58E : Entry Point - Mode 2
B5DA : Entry Point - Bright Man Shoots.
B5F6 : Continue Point - Bright Man Shoots.

716D8 : Bright Man Modes
	35 : Jump
	37 : Flash with Lightbulb
	38 : Shoot

[Pharaoh Man's ASM: B330-B53B / 71340-7154B]
	B330-B4FD / 71340-7150D	Pharaoh Man ASM first entry point
		B387		Charging Pharaoh Shot entry point
		B33A		Load next AI from Y (going from 00 to 02) entry point
		B3C9		Jump on Mega Man entry point
		B3F8		Manage the jumps once parameters are set (note:
				big jump parameters are set at $B3C9, but the
				two small jumps parameters are set when setting
				the new AI at $B33A. This just execute a jump with the given
				parameters).
	B4FE-B52A / 7150E-7153A	Pharaoh Man's table (in function of a value from a AI pointer,
			        AI pointer, depending on what to do, is a value from 00 to 02,
				when we load an ASM with this pointer, we load all those datas.)
		B516-B518 / 71526-71528 : Sprite ID
		B519-B51B / 71529-7152B : Low ASM
		B51C-B51E / 7152C-7152E : High ASM
		B51F-B521 / 7152F-71531 : Vertical Speed Low
		B522-B524 / 71532-71534 : Vertical Speed High
		B525-B527 / 71535-71537 : Counter until the Small Pharaoh Shot is thrown when
					  in air
		B528-B52A / 71538-7153A : Number of jumps to do
	B52B-B52D / 7153B-7153D	Pharaoh Shot ASM
	B52E-B53B / 7153E-7154B	Normal  Shot ASM

[Common Boss ASM]

B71E-B743 : Return a Y used to pick in a table the next action. Start from
	    Y 0, until y = probably?? max value from action table. To give a randomize
	    feeling, actions are in a table

[Toad Man's ASM]

B747 : Toad Man's ASM Start
B7DA : Other Entry Point

BB9B-BBF3 / 71BAB-71C03 : Seemingly unused ASM.. hmm.

[Cockroach Twins]

BC71 : Subroutine - Draw Hatch opening up
BCDA : Subroutine - Draw Hatch closing

BD43-BD4D / 71D53 : Cockroach Twins : Hatch Open/Close Buffer Template
BD4E : Cockroach Twins : Hatch tile preset pointer
BD56-BD61 : Cockroach Twins : Hatch tile presets

BD62-BFFF : Unused random data.

72010 <-> 7400F (Bank $39 by $2000)
-----------------------------------

MEMORY AREA: $8000-$9FFF

[Sequence]

8000 : Entry Point - Startup ($800C)
8003 : Entry Point - Handle Return from Stage Clear / Game Over ($8C7C)
8006 : Entry Point - Level Init ($85AD)
8009 : Entry Point - Debug Menu!!! ($9A28)

800C-> : Startup ASM

8022 : Execute Point - Copyright Screen Wait

[Title Screen]

803A : Execute Point - Entering Title Screen

804D-8051 : Check if a menu was selected. If so, go to $808C.
8053-8057 : Was a button pushed to make cursor move? If no, go to 8070, which goes to $FF1C.
8059-806D : Handle cursor movement.

809D : Execution Point - "Press Start" Selected
	This is where it jumps back after selecting "Stage Select" on the Password Screen.

[Stage Select / Castle Stage Intro's]

80E7 : Execution Point - Level ID loaded to $22

80FE : Execute Point - Entering Cossack / Wily Castle Intro Scene Start
	Here's some slight interesting ASM: It will check here if the Cossack Stages
	are cleared, and will jump to $83E8 in that case. However, the
	JMP $83E8 is never executed through the game.
	When doing the Wily Stage Intro, the game jumps
	to $83E8 from elsewhere. (not sure where).

8107-8219 : Cossack Stage Intro Code

821A-8236 : Cossack and Wily Stage Intro Code - Subroutine

8237-82FE : Stage Select Loop - Cursor Movement and Blinking Handler
  82EA-82FB : Set cursor sprites to blank tile.


82FF-833B : Stage Select - Cossack Portrait Exception
	When all regular stages are cleared, this routine takes care of
	doing the slight palette blink and drawing cossack's portrait onto the
	stage select screen, when the Cossack stages can be played.

833C-83E7 : Cossack Stage Intro Code - After first stage clear.

83E8-8494 : Wily Stage Intro Code

8495-85AC : Common Screen Handler (Arguments: $10 = ID, $2A = ??)
	Returns after palette is faded up.

85AD-8626 : Huge RAM Clear Routine - Used by Common Screen Handler, Wily Stage Intro code and Cossack Stage Intro code (833C) and more.
	Called when gameplay starts. (from C555)

8627-> : Cossack/Wily Stage Map Sub (8107 & 833C) (Draw sprites of past path)
866B-> : Cossack/Wily Stage Map Sub (8107 & 833C) (Draw sprites of next path)
86B7-> : Cossack/Wily Stage Map Sub (8107 & 833C) (Animate destination point)

872E-884D / 7273E-7285D : Common Screen Palettes ($20 bytes for each ID)
  7273E-7275D : Capcom Logo Palettes
  7275E-7277D : Title Screen Palettes
  878E-87AD / 7277E-7279D : Stage Select Palettes
  7279E-727BD : Copyright Palette

  87AE-87BD : Cossack Stage Intro - Some Palette
  87CE-87ED : Cossack Stage Intro - Darkened Down Background Palette (?)

  880E-882D : Wily Stage Intro palette - dark
  882E : Wily Stage Intro palette - bright

884E-> : Common Screen ID: Screen Bank and Primary Graphics Load ID (Seems so)

8856 - 8859 : Common Screen sprite data offset table - Low
	8857 / 72867: Title Screen (A1)
885A - 885D : Common Screen sprite data offset table - High
	885B / 7286B: Title Screen (88)

885E-8866 / 7286E-72876 : Stage Select : Base Sprite Y coordinate for each selection.
8867-886F / 72877-7287F : Stage Select : Base Sprite X coordinate for each selection.
8870-8878 / 72880-72888 : Stage Select : Stage ID for each selection.

8879-887A-> : Common Screen: Sound ID
887D : Cossack Portrait Nametable Data

889F-88A0 : Data Belonging to 821A Sub. (Blink palette colors)

88A1-88A5 : Title Screen Sprite Data.

88BF-88D7 / 728CF-728E7 (18) : Stage Select - Selection Window Sprite Data

88D8-88F7 : Cossack Portrait Sprite Data
88F8-8997 : Cossack Stage Intro - Sprite Data
8998-89B7 : Cossack Stage Intro - Path Sprite Data
89B8 :
89DF-> : Wily Stage Intro - sprite data

8A0C-8B52 : Cossack/Wily Stage Intro : Past Path Sprite Data

8B53 : Cossack/Wily Stage Intro : Past Path Sprite Data - Low
8B5B : Cossack/Wily Stage Intro : Past Path Sprite Data - High

[Stage Select Screen Data]

Data:
8B63-8C3E / 72B73-72C4E : Portrait Sprite Data
  8B63-8B8F / 72B73-72B9F : Bright Man
  8B90-8BB8 / 72BA0-72BC8 : Toad Man
  8BB9-8BE1 / 72BC9-72BF1 : Drill Man
  8BE2-8BEA / 72BF2-72BFA : Pharaoh Man
  8BEB-8C07 / 72BFB-72C17 : Ring Man
  8C08-8C10 / 72C18-72C20 : Dust Man
  8C11-8C2D / 72C21-72C3D : Dive Man
  8C2E-8C3E / 72C3E-72C4E : Skull Man

8C3F-8C46 / 72C4F-72C56 : Portrait Sprite Data - Low Offset for each Boss
8C47-8C4E / 72C57-72C5E : Portrait Sprite Data - High Offset for each Boss

8C4F - 8C6B : VRAM Buffer Template for a blank Boss portrait (used for
              all stages which are cleared. The stage select screen
              graphics is over-written with a 4x4 tile blank box for
              each portrait area. This is just a template, it overwrites
              all the VRAM Address bytes with specific information
              before its written to Name Table VRAM.)
8C6C - 8C73 : Specific VRAM Address to blank out portrait - Low VRAM Address for each Boss
8C74 - 8C7B : Specific VRAM Address to blank out portrait - High VRAM Address for each Boss

8C7C : Execute Point - Boss defeated, MM warps out of level.

8CBC : Point - Init Weapon Get screen.

8E78 : Execute Point - Weapon Get Done, go to Password Screen.

8E8F : Jumped to from Game Over.

8EA3 : Password Screen (Stage Clear) Selection Loop

8ECC : Password Screen (Stage Clear) - Pressed A / Start, handling selection.

8EDE-8EF6 : Sub - Refill Weapon Energy. (Branched to from Game Over)

8EF7-8F48 : Password Screen (Game Over) ASM
  8F3D : Password Screen Loop, if Game Over happened in Cossack or Wily stage.

8F49-8F92 : Weapon Get / Password Screen Subroutine - Init graphics, password screen palette, put text.

8F93-> : Stage Introduction ASM Subroutine. Called when regular stage is selected.

	902D-9048 : Special code to create Ring Man's Sparkling Helmet

	For the animated palette in the 3 last background palettes,
	here is how the animated palette is calculated, directly in an ASM,
	(which means, if you want to change the loaded palettes, change the ASM) :
		Palette 1 : ((((stage ID)) * 2 + (stage ID)) + 92)
			Then, remove bit 7, which is there to say that the palette is
			animated. Palette 1 value result is in the accumulator at
			$8FF6 ($8FF6:9D F0 06  STA $06F0,X)

			Here are the results if you calculate them
				Bright Man : 92
				Toad Man : 95
				Drill Man : 98
				Pharaoh Man : 9B
				Ring Man : 9E
				Dust Man : A1
				Dive Man : A4
				Skull Man : A7

		Palette 2 : (Palette 1) + 1
		Palette 3 : (Palette 2) + 1

  7303F : Stage ID compare with #4 (?)

  909C : Stage Introduction Animation Loop

90C7-9253-> : Wily Saucer sequence
	Jumps to 83E8 at end.

9254-9271 : Sub of Wily Saucer Sequence (Move stars)

9272-9280 : Sub of Wily Saucer Sequence (Arguments: A = # of frames to update sprites and do delay.)

9281-92C8 : Text Write Common Routine (Used by Boss Intro, Weapon Get)

92C9-92DE : Write Password Screen Text String to screen. (Subroutine of 8F49, 8EF7, and possibly more.)
	Y register is loaded with text string id. (See 9529 and 952E.)
92DF-92FE : Weapon Get Palette

92FF-937E / 7330F-7338E : Weapon Get - Megaman Portrait Palettes
  92FF-930E : Flash Stopper (Bright Man)
  930F-931E : Rain Flush (Toad Man)
  931F-932E / 7332F-7333E : Drill Bomb (Drill Man)
  932F-933E : Pharaoh Shot (Pharaoh Man)
  933F-934E : Ring Boomerang (Ring Man)
  934F-935E : Dust Crusher (Dust Man)
  935F-936E : Dive Missile (Dive Man)
  936F-937E / 7337F-7338E : Skull Barrier (Skull Man)

937F-938E / 7338F-7339E : Weapon Get : Rush Adaptor Spr Palette
938F / 7339F : Weapon Get : Got Rush Adaptor Blink : Color 1 ($16)
9390 / 733A0 : Weapon Get : Got Rush Adaptor Blink : Color 2 ($0F)
9391-93B0 / 733A1-733C0 : Wily's Saucer Sequence - Palette

[Weapon Get Data]

93B1-93B8 : Weapon Get : Index of weapon achieved for each stage id index.

93B9-93D4 : Weapon Get - VRAM Buffer to clear old "You Got" letters.

93D5-94D8 / 733E5-73456 : Weapon Get / Boss Introduction Text Data
	Datas are as follow : -Determine Height and???-X Coordinate of the First Letter (the others are written after this one)-Then all the tiles to pick, 	ending with "FF"
	Note : This means the palette to write the letters is probably picked up by the ASM.

94D9-94F0 - 734E9-73500 : Weapon Get / Boss Introduction Text Offset - Low
94F1-9508 - 73501-73518 : Weapon Get / Boss Introduction Text Offset - High

  733E5 - 93D5 : $00 = "You Got"
  733EF - 93DF : $01 = "Flash Stopper"
  733FF - 93EF : $02 = "Rain Flush"
  7340C - 93FC : $03 = "Drill Bomb"
  73419 - 9409 : $04 = "Pharaoh Shot"
  $05 = "Ring Boomerang"
  $06 = "Dust Crusher"
  $07 = "Dive Missile"
  $08 = "Skull Barrier"
  $09 = "Rush Jet"
  734C9 - 94B9 : $0A = "Rush Marine"

  $0B = "Bright Man"
  $0C = "Toad Man"
  $0D = "Drill Man"
  $0E = "Pharaoh Man"
  $0F = "Ring Man"
  734BD - 94AD : $10 = "Dust Man"
  $11 = "Dive Man"
  $12 = "Skull Man"

  734DF- 734E8 : 94CF-94D8 : $13 = "Adaptor"

  $14 = "Pharaoh Shot"
  $15 = "Ring Boomerang"
  $16 = "Dust Crusher"
  73448-73456 - 9438-9446 : $17 = "Dive Missile"

[Password Screen Data]

9509-9528 : Password Screen Palette

9529-952D : Password Screen - Text data - Byte Pointer table

952E-9540 : Password Screen Text data (VRAM Buffer source) 0 - Blank text in text window.
9541-9567 : Password Screen Text data (VRAM Buffer source) 1 - "Stage select / Continue"
9568-9575 : Password Screen Text data (VRAM Buffer source) 2 - "Continue" only.
9576-9588 : Password Screen Text data (VRAM Buffer source) 3 - "Pass word error".
9589-9595 : Password Screen Text data (VRAM Buffer source) 4 - "Game Over".

[Stage Intro Data]


9596-9615 / 735A6-73625 : Stage Introduction Screen - Initial BG Palettes
	Table read with Y, Y is Stage ID * 16

9616-961D / 73626-7362D : Stage Introduction - Sprite Palette Color $0 - $7
	Those remains for every stage selected.

961E-965D / 7362E-7366D : Stage Introduction - Sprite Palettes (Color $8 - $F)
	Table read with Y, Y is Stage ID * 8
	7362E-73635 : Palette for Bright Man
	73636-7363D : Palette for Toad Man
	7363E-73645 : Palette for Drill Man
	73646-73649 : Palette for Pharaoh Man (P1) BODY (when selected)
	7364A-7364D : Palette for Pharaoh Man (P2) JEWEL (when selected)
	7364E-73655 : Palette for Ring Man
	73656-73659 : Palette for Dust Man (P1) VACCUM (when selected)
	7365A-7365D : Palette for Dust Man (P2) BODY (when selected)
	73666-7366D : Palette for Skull Man


[Misc Data]

965E-9671 : Wily Saucer Sequence - Stars Sprite data.

[Password Screen]

9672-9839 : Password Screen (Password Enter) ASM
  968D : Password entering loop
  9722 : Point - It jumps back here after password error
  972D : Password decoder / check
  9772 : Jump to 981D
  978E : Password check loop
  97E1 : Point - Password OK
  97FE : jump to stage select.
  9801-981C : Password check subroutine
  981D-9839 : Point - Password error

983A-9885 : Password enter loop subroutine

9886-98F5 : Password Generator ASM

98FA-9999 : Password Screen Sprite RAM setup

999A : Password Screen cursor Y coordinate data
99A1 : Password Screen cursor X coordinate data

99A8-99A9 : Password screen cursor add table
99AA-99AE : Password Table A
	Fields which cannot have dot in it
99AF-99B9 : Password Table B
	Sprite DMA byte index to 11 fields in the
	password, only 1 of the fields can
	have a dot in them.

99BA : Password table C

99CE-> : Password Table D

99E2-> : Password Table E

9A1E-9A27 : Password generator - Weapon energy memory index

9A28-9B2F : Debug Menu ASM

9B30-9B74 : Debug Menu Subroutine

9B75-9B7C : Debug Menu Sprite Palette Data
9B7D-9B84 : Debug Menu Sprite Palette Data

9B85-9C5D : Debug Menu Sprite RAM Data
9C5E -> ?? Data

73C86-7400F : Unused random data.

74010 <-> 7800F (Bank $3A <-> $3B by $2000)
-------------------------------------------

[Object ASM Bank #3 and #4 - Enemies / Weapons / Items / Pickups.]

MEMORY AREA: $8000-$BFFF

Routines between addresses $8000 to $8823 can be called from any of the Object ASM banks,
as this bank always is loaded into $8000-$9FFF regardless of where the Object ASM is.

74076 : Stage ID compare with #$04 (Rainbow bars related?)

Code:

it's in the middle of a function...

8016-802B / 74026-7403B : Check for every $0300 slot if there is an object ID, and if
there is no ASM that was set when creating the object, load him an ASM with his object
ID from table $8683 and $8753. So just putting an object ID in a slot, with a unique
object ID is enough to have the enemy created.
NOTE : SEEMS TO NOT WORK WITH EVERY OBJECT ID... BUT WORK WITH SOME THINGS

805A-8096 : Check if invincibility counter is off, else, RTS. Then, if going on, look for $805E explained at the end of this document.

80A7-80DA : Flash Stopper-specific code.
		Note : If you delete Flash Stopper and want to use it, make sure to change at $80A3 the
		code which allows it to come here when weapon is Time Stopper.
80DB-8107 : Rain Flush-specific code.

8110 : Handle Weapon Particle Collition?
	This is executed whenever a weapon/gadget hits another object.
	$8162 : Weapon is going to be deflected.

81BB-81C8 : Check if Mega Man is already in hurt state. If so, go on to $81C9. Code comes back together at $81C9.
	81C1 : Check if there is a collision with Mega Man. If so, call $81CC because Mega Man is hit.

81CC : Subtract MM's HP when MM gets hit by object. (Subroutine, can be called from Object ASM)

823F-> : Routine, MM is defeated by enemies/hit by spikes.
	8243 : Jump-in point if MM is hit by spikes.

  Data in ASM:
    7426E : Delay before gameplay refreshes - (death by spikes) - Low
    74273 : Delay before gameplay refreshes - (death by spikes) - High

82A4-83D2 / 742B4-743E2 : Sub - Subract Enemy HP, remove if no HP left,
	check if remove weapon object or not, etc. (Enemy is Hit by Particle)
	There are special ASM for Dust Crusher, Drill Bomb, Ring Boomerang, Wire Adaptor,
	Charged Shot and Charged Pharaoh Shot. The rest are managed the same way.

	833A-834D : Special exception ASM for Cossack Stage 4, battle with Cossack.
		Ensures that object HP's are kept to a value of #2 or more.

	8373-8380 : Since the life of Cossack Stage 3 boss is for each, half
	the life of a complete life bar, we must still draw the complete
	life bar. So the life bar with those boss is #$0E. When we reach this
	place, we add to it #$0E so it becomes a complete life bar (the graphic).

8413-84E2 / 74423-744F2 : Damage Objects does to Megaman, for each Object ID
84E3-85B2 / 744F3-745C2 : Object ID to drop when Object dead (?) (If more than 0), for each Object ID.
85B3-8682 / 745C3-74692 : Enemy ASM Bank for each Object ID
8683-8752 / 74693-74762 : Enemy ASM Address Low for each Object ID
8753-8822 / 74763-74832 : Enemy ASM Address High for each Object ID


-- I think, for all the ASM beyond this point, bank $3B ($76010-7800F) is assumed switched into $A000-$BFFF. However, for the ASM before this point, the bank switched into $A000-$BFFF depends. --

8823 : Single RTS (No Object ASM)
	Object ID's pointing here: $80, $81
8824 : Single RTS (No Object ASM) - Entry Point of Object ID $67
	Object ID's pointing here: $26, $67

8825-884A / 74835-7485A : Buster Object ASM (Object ID $02)
	8825 : Entry Point

884B-88BC : Weapon ObjASM Subroutine - Handle "Shootable" block.
	(Called as Subroutine of Weapon Object ASM)
	Check if weapon hits Shootable Block, if so:
	Draw blank tiles where block was, and make explosion sprite at the same point.
	Scanline Effect ID ($F0) must be set to #4 for this to do anything.

88BD-> Buster Object ASM - Speed Low Byte
88C3-> Buster Object ASM - Speed High Byte

88C9-88DD : Deflected Weapon Object ASM (Object ID $03)
	88C9 : Entry Point

88DE-> Rush Items Object ASM (Object ID $04)
	88DE-88F2 : Main Rush's ASM
	88F3-881A : Rush Coil First Own Object ASM
	891A-894A : Rush Jet First Own Object ASM
	894B-8972 : Rush Marine First Own Object ASM

	8973-8995 : Rush is dismissed (part 1)
	8996-89E2 : Rush Item landed
	89E3-8A36 : Rush Items Waiting for something to happen.
		8A16-8A36 : Mega Man is on Rush Item.

	8A37-8A5C : Mega Man on Rush Coil.
	8A5D-8A85 : Rush is dismissed (part 2)
	8A86-8B1C / 74A96-74B2C : Rush Jet moving. As soon as Mega Man was once on Rush Jet,
		it will always be there now.

	-----------------------------------------------------------------------------------------------------------------
	All the following tables are read with the Y set from $A0. So they go from #$01 to #$03, which
	means that the address where is the table is never used.

		example, in the code, the table with values from $8B1D-8B1F is loaded at $8B1C,Y.

	8B1D-8B1F / 74B2D-74B2F : Rush Items sprite to set right after landing.
	8B20-8B22 / 74B30-74B32 : Rush Items $0408 Flag to set when he has landed.
			$8B23-$8B25 / 74B33-74B35
	8B23-8B25 / 74B33-74B35	: Rush Items Sprite Flag values wich it adds to the Sprite Flag already in position.
	8B26-8B28 / 74B36-74B38 : Rush Items Address Table - Low (Entry Point)
	8B29-8B2B / 74B39-74B2B : Rush Items Address Table - High (Entry Point)

	The 2 followings are address tables. ASM for when driving Rush Jet/Marine
	The one for Rush Coil contains #$00 which are used to know when Rush item is current item.
	This is done this way, so if item is Rush Coil, they make a BEQ to send him somewhere else,
	and for the others they already loaded an ASM value.

	8B2C-8B2E / 74B3C-74B3E : Rush Items Address Table - Low
	8B2F-8B31 / 74B3F-74B41 : Rush Items Address Table - High


	For the following table, those belong to Rush Jet, and Y = #$00 is possible. So for example,
	table $8B32 is loaded in the code as $8B32,Y

	8B32-8B35 / 74B42-74B45 : Horizontal Speed Low
	8B36-8B39 / 74B46-74B49 : Horizontal Speed High
	8B3A-8B3D / 74B4A-74B4D : Vertical Speed Low
	8B3E-8B41 / 74B4E-74B51 : Vertical Speed High
	-----------------------------------------------------------------------------------------------------------------




	8B42-8B94 : Mega Man in Rush Marine. Set initial properties, then set ASM at $8B95.
	8B95-8BA2 : Mega Man in Rush Marine ASM.


	Memory usage:
	=============
	468-47F : Object ASM Private Memory 1	For Rush Coil, Marine and Jet, this is Low counter untile Rush leaves
						when waiting for contact with Mega Man.

	480-497 : Object ASM Private Memory 2	For Rush Coil, Marine and Jet, this is High counter untile Rush leaves
						when waiting for contact with Mega Man.

	4B0-4C7 : Object ASM Private Memory 4	For Rush Jet/Marine, used as a counter to decrease their energy.



8BA3-8BFA Rain Flush (Capsule) Object ASM (Object ID $05)
	8BA3 : Entry Point

8BFB-8CA3 : Balloon Adaptor Object ASM (Object ID $06)

8CA4-8D8E-> : Dive Missile Object ASM (Object ID $07)
	8CA4 : Entry Point
	8D8E-> : Data Table

8D9E-8E30 : Ring Boomerang Object ASM (Object ID $08)
  8D9E : Initial Entry Point
  8DBC : Entry Point #2
  8DD7 : Entry Point #3
	RTS : Not used by $8E31.

8E31-8E6E : Drill Bomb Object ASM (Object ID $09)
  8E31 : Entry Point
	RTS : Not used by $8E6F

8E6F-8ECB : Dust Crusher Object ASM (Object ID $0A)
  8E6F : Entry Point
  8ECC-8ECF : Data Table 1 (Sprite ID for the 4 Small Pieces)
  8ED0-8ED3 : Data Table 1 (Direction bits for the 4 Small Pieces)

8ED4-8F24 : Wire Adaptor Object ASM (Object ID $0B)
  8ED4 : Entry Point

8F25 : Pharaoh Shot Object ASM (Object ID $0C)

8F40 : Pharaoh Shot (Being Charged) ObjASM (Object ID $0D)

8F9C-> : Table : Substance/Shape bits (Mem 408->) for each Sprite ID (Mem 558)
	(Used by Pharaoh Shot.) Possibly to update shape difference between smal shot
	and charged shot.

8FE6 : Single RTS (No Object ASM) - Entry Point of Object ID $0E

8FE7-8FFF : Skull Barrier Object ASM (Object ID $0F)
	8FE7 : Entry Point

9000-90A1 : Ladybug Copter Object ASM (Object ID $10)
	9000 : Main Entry Point
	9063 : 2nd Entry Point

	9073 : Called as Subroutine

90AA-90E9 : Movement Speed Tables - Used by multiple ASM code in same bank.

90EA-90EC : Ladybug Copter - Dropped Propel - Object ASM (Object ID $11)

90ED-91DB : Hover ASM
	NOTE : RTS NUBT

91DC-91DE : Hover : Bullets shot ASM (Object ID $39)

91DF-93AE : Slinky
	91DF-934E : Slinky ASM
	934F-93AE : Slinky Tables

93AF-942A : Desert Scorpion Generator
	NOTE : RTS UBT

942B-94E5 : Desert Scorpion
	942B-94DB : Desert Scorpion (Object ID $14) Object ASM start.
	94DC-94DE : table, use unknown??
	94DF-94E1 : table, use unknown??
	94E2-94E5 : Random "dash" time table.

	NOTE : RTS NUBT

94E6-9635 : Grasshoper
	94E6-95F5 : Grasshoper ASM
	95F6-9635 : Grasshoper's Tables

	NOTE : RTS NUBT

9636-96A1 : Unused Object ASM (Object ID $17) - Generate Jet Bird (Object ID $18)
	at random X location, then do nothing.
	THIS IS USED :
	9689-969D : Function used by Jet Bird for Generation of Jet Bird Children.

96A2-9764 : Jet Bird ASM

There is a RTS between them, and it is not used by any of them.

9766-97C2 : Jet Bird Children
	9766-97AA : Jet Bird Children ASM
	97AB-97C2 : Jet Bird Children Table

97C3-97D2 / 757D3-757E2 : Tables used by Wall Gun & Jet Bird Children enemy over wall gun
97D3-97E2 / 757E3-757F2 : Tables used by Jet Bird Children Enemy over wall gun
97E3-98D4 / 757F3-758E4 : Wall Gun's ASM				NOTE : RTS NUBT
98D5-9924 / 758E5-75934 : Wall Gun's Tables				NOTE : RTS N
9925-992A / 75935-7593A : Wall Gun's Bullet ASM				NOTE : RTS N


9B07-9B51 / 75B17-75B61 : Whapper's ASM					NOTE : RTS UBT
9B52-9B55 / 75B62-75B65 : Whapper's Rings object creator's Tables 	NOTE : RTS N
9B56-9C0E / 75B66-75C1E : Whapper's Rings object creator		NOTE : RTS NUBT
9C0F-9C14 / 75C1F-75C24 : Whapper's Rings' property Table		NOTE : RTS N
9C15-9C1A / 75C25-75C2A : Whapper's Rings' property Table		NOTE : RTS N
9C1B-9C20 / 75C2B-75C30 : Whapper's Rings' property Table		NOTE : RTS N
9C21-9C26 / 75C31-75C36 : Whapper's Rings' property Table		NOTE : RTS N
9C27-9C2C / 75C37-75C3C : Whapper's Rings' property Table		NOTE : RTS N
9C2D-9C32 / 75C3D-75C42 : Whapper's Rings' property Table		NOTE : RTS N
9C33-9C8D / 75C43-75C9D : Whapper's Ring's ASM				NOTE : RTS NUBT

9C8E-9CA1 : Common routine - Find Object with Object ID equal to memory $00.

9CA2-9D6B : Fly's Code / Object ID 33 / Enemy ID $13
	9CA2-9D5A : Fly's ASM
	9D5B-9D68 : Fly's Table
	9D69-9D6B : Fly's Bullet ASM

9D6C-9E3B : Umbrella Metool's Code / Object ID 35 / Enemy ID $14

9E3C-9E3E : Umbrella Metool's Projectile's Code / Object ID 36 / Enemy ID ???

9E3F-9EE5 / 75E4F-75EF5 : Fireworks Guy's ASM				NOTE : RTS NUBT
9EE6-9F1C : Fireworks Guy - Object placed when shot - Object ASM - (Object ID $C8)

9F85-9FDE-> : Object ID $82 and $83 ASM (explosion like Drill Bomb)

A0DC-A184 /760EC-76194	Super Ball Machine ASM			NOTE : RTS UBT
A185-A18C /76195-7619C	Super Ball Machine Tables		NOTE : RTS N
A18D-A1DD /7619D-761ED	Super Ball Machine's Ball		NOTE : RTS NUBT

A1DE-A222 : Falling Boulder - controller ASM (Object ID $40) (Enemy ID $30)
A223-A286 : Falling Boulder, small pieces			RTS NUBT
A287-A2A0 : Falling Boulder Tables


A2B9-A3B4 : Eddie						RTS NUBT
A3B5-A3D4 : Eddie's tables

A436-A46C / 76446-7647C : Weapon deflection if hits from left. Used by Skullmet and
	    probably other enemies

A46D-A557 : Totempole
	A46D-A54C : Totempole's ASM
		A534-A54C : Totempole jumps
	A54D-A554 : Totempole's Table
	A555-A557 : Totempole's Bullet ASM

A558-A6D2 : Metool (Jumping, Walking, Spinning)
	A558-A68F : Metool (Jumping, Walking, Spinning)
	A690-A69C : Metool's Table
	A69B-A6D2 : ??? bullet?? of metool?

A93F-A951 : Water Air Bubble Object ASM (Object ID $66)

AA11-AACB / 76A21-76ADB : Amoeba				NOTE : RTS NUBT

ABD5-AC00 / 76BE5-76C10	: Saturn Bot's ASM

AC29-AC94 : Unused Object ASM..					NOTE : RTS NUBT

AC51-AC94 : Entry Point of Object ID $68 (Unused)

AC95-AD5D / 76CA5-76D6D : Skullmet ASM				NOTE : RTS NUBT
AD5E-AD69 / 76D6E-76D79 : Skullmet's Tables			NOTE : RTS N
AD6A-AD6F / 76D7A-76D7F : Skullmet's Bullet ASM			NOTE : RTS N

AD70-ADC2 / 76D80-76DD2	Helipon 1 - Flying
ADC3-ADF0 / 76DD3-76E00	Helipon 2 - Falling
ADF1-AE4B / 76E01-76E5B	Helipon 3 - Waiting and shooting
AE4C-AE4E / 76E5C-76E5E	Helipon's bullet ASM
AE4F-AF34 / 76E5F-76F44	Piranha ASM

AE4F-AF34 / 76E5F-76F44 : Piranha's ASM
	AE4F : Waiting to see Mega Man to jump
			(if  piranha hits a wall with this entry point, it just can't advance)
	AE94 : Jump on Mega Man
	AEFC : Don't know what it's for
	AF19 : Advance until it sees a wall and turn back, to set entry point back to AE4F

B0D9-B16F / 770E9-7717F : Manta ASM
B170-B197 / 77180-771A7 : Manta's Tables

B3D9-B42F / 773E9-7743F : Mono-Roader ASM

B430-B597 : Gachappon						NOTE : RTS NUBT
	B430-B57A : Gachappon's ASM
	B57B-B58E : Gachappon's Table
	B58F-B591 : White Bullet's ASM
	B592-B597 : Red Bullet's ASM

B598-B621 : Pakatto 24
	B598-B61C / 775A8-7762C : Pakatto 24 ASM		NOTE : RTS NUBT
	B61D-B61E / 7762D-7762E : Pakatto 24's Tables		NOTE : RTS N
	B61F-B621 / 7762F-77631 : Pakatto 24's Bullet ASM	NOTE : RTS N

B622-B6DC : Up'n'down
	B622-B6DC : Up'n'down Controller			NOTE : RTS NUBT
	B6DD-B6E4 : Up'n'down tables

B6E5-???? : Water Mine

B780 : Part of Spark Spine (Object ID $B7) ASM.

B7C5-B85F / 777D5-7786F : Skull Launcher ASM

B860-B8C3 / 77870-778D3 : Wheel Skull ASM

B8C4-B94D : Spike Box - From both Left and Right - Generator (Object ID's $BD & $CE)

B8E0 / 778F0 : Spike Box (Enemy ID $54) - Delay until new one appears - High
B8E5 / 778F5 : Spike Box (Enemy ID $54) - Delay until new one appears - Low

B94E-B972 / 7795E:77982 : Spike Box ASM

BB6C-BBC2 : Decide items to drop when enemy dies

BBC3 : ObjASM for Dropped Items (All of them)

  BBD3 : Execution Point - Megaman Reaches Item
  BBEE : Where we make the jump to the right place, depending on picked up item.

Item:
	0: Smal Weapon Energy Capsule
	1: Big Life Energy Capsule
	2: Smal Life Energy Capsule
	3: Extra Life
	4: Big Weapon Energy Capsule
	This can't be dropped by enemies, but has ASM address in the pickup handler jump table.
	5: E-Tank

BC01: E-Tank Picked Up ASM

BC11: Big/Small Life Capsule Picked Up ASM

BC15: Big/Small Energy Capsule Picked Up ASM

BC24 : Increase Health/Weapon - Picked up Large Health Capsule

BC44 : Balloon Item (Capsule) Obj-ASM Entry Point

BC4A : Object ASM for Pickups (Object ID $C1)
	??? and something else which goes on at BC66

BC7A-BC8C : Object ASM - Big Energy Capsule dropped by robot masters in rematch battles. (Object ID $C6)

[Items Dropped when enemy is defeated]

  BC8D-BC91 / 77C9D-77CA1: Chance of item being dropped (00 is lowest, FF is highest...
	it's appropriate, but it's more complex, see "Tutorial - Object to Drop")
  BC92-BC96 : Sprite
  BC97-BC9B : Object Substance and Shape byte ($408())
  BC9C-BCA0 : Written to Memory 0 ($468()). It's pointer for $F0F8 function.
	Low Counter is always #$FF for all.


  BCA1-BCA5 : Table which tells how much to refill for each item.
	Table is read using index Y being sprite ID
		So table read is $BC87.

  BCA6-BCAB : ASM Pointers for Pickups - Low
  BCAC-BCB1 : ASM Pointers for Pickups - High

BCB2-BFFF : All unused random data.

78010 <-> 7A00F (Bank $3C by $2000)
-----------------------------------

MEMORY AREA: $8000-$9FFF

[Megaman Movement ASM / Weapon Menu ASM]

8083 / 78093 : This is here we upgrade $35, which is the counter
for the charged buster shot. We check the sound and palettes to load...
Set two CLC there is you want the charged buster to be impossible.

80E3-80F1 / 780F3-78101 : MM Movement ASM Picker : Take Mega Man
status in $30 as an index, and pick his ASM in 80FA and 810E
table.

80FA-810D : MM Movement - ASM Address - Low
810E-8121 : MM Movement - ASM Address - High

==============================
==============================
8130-8352 : Status is 00 Start
==============================
==============================
8130 / 78140 : MM Movement - Stand/Walk/Aim AND CHECK OTHER, AS WELL AS JUMP,
AND SEND TO RIGHT CODE SECTION.
ONLY COME HERES DIRECTLY IF STATUS IS $30.

8135-813D / 78145-7814D : Check if "A" is pushed. If so,
go to $813E. It seems, to be here, Mega Man must be on ground.

813E / 7814E : Send here if you want Mega Man to jump. It checks there if
Mega Man is on Rush Jet? and if down is held (slide). Better to have
X at 0 if you send here, because it will be used as Mega Man's identifier.

8156 / 78166 : Slide starting code : $8147 sends here if the
pushed buttons indicate Mega Man is sliding.
You don't want Mega Man to slide in your game? Put a RTS here!

  81B3 : Toad Man Stage Slide-Dust-Cloud exception -
  Here it chooses the Sprite ID for the dust cloud when Megaman slides.
  If at beginning of Toad Man's stage, it picks an alternate sprite.

81DC : Code comes here is Down is pushed. It checks if $46 contains ladder top. If so, set Mega Man status to be #$03
	(climbing)

826C : Check for Toad Man's stage, create water effect when MM walks.
82C8 : MM Movement - Jump, Also Subroutine of 8130.

782E3 : Stage ID for which level the "Slippery" Block Type is functional in. Contents is $08 (Cossack Stage 1).
	1st of 3 checks that need to be changed.

8320-8352 : Come here if Mega Man is on ground. If $30 is not #$00, it means Mega Man fell on ground, so do things
such as playing "MM hit ground sound".
============================
============================
8130-8352 : Status is 00 End
============================
============================

8353-83F1 : MM Movement - 02 - Slide.
	83D3 : Comes here when Mega Man stop sliding.

83F2-841F : Check collision with solid object (slot $0528). Only called with sliding, since it uses
	    Mega Man Sliding's shape. !!!new!!! not 100% sure about it. I need to check it more
		RTS UBT

8420-84AC? : MM Movement - Ladder ASM Entry Point??

84AD-854C : MM Movement - 04 - In Rush Marine.
854D-858C : MM Movement - 04 - Rush Marine's Speed Tables.

	NOTE : THOSE TABLE USE TOO MUCH SPACE FOR NOTHING. IT JUST LOAD THE DIRECTION BITS AND LOAD SPEEDS WITH THIS

	854D-855C : Horizontal Speed Low
	855D-856C : Horizontal Speed High
	856D-856C : Vertical Speed Low
	857D-858C : Vertical Speed High


858D-85DC : MM Movement - 05 - Using Wire Adaptor.

85DD : MM Movement - 06 - Hit by Object.	(85E9 in Mega Man 4 Dr Cossack Treason)
	RTS NUBT

865D-86AC : MM Movement - 13 - MM escapes from Wily's Castle (Also Subroutine of 8775.)
	Called as routine from 8775.
	RTS UBT

86AD-86CD : MM Movement - 09 - Wait for boss to get ready.

86CE : MM Movement - 0A - "Ready" blink, Warp down.

	8730 : Position at which we start checking if Mega Man hit floor.

8775-87A6 : MM Movement - 11 - Wire/Balloon Item achieved - Wait, then warp out.

87A7-884F : MM Movement - 0B - Boss Defeated - Weapon Get / Warp Out

8850-8894 : MM Movement - 0C - Battle with Cossack - Caught by cranes

8895-8919 : MM Movement - 0D - Cossack Stage 4 - Cossack Defeated

891A-8A6F : MM Movement - 0E - Cossack Stage 4 - Cossack Defeated (Dialogue Handler)
  891A-89E4 : Main ASM
  89E5-8A03 : Dialogue $00 Effect
  8A04-8A5A : Dialogue $01 Effect
  8A5B-8A69 : Dialogue $02 Effect

  8A6A-8A6C : Dialogue - Special Effect ASM Address - Low
  8A6D-8A6F : Dialogue - Special Effect ASM Address - High

8A70-8B37 : MM Movement - 0F - Wily Stage 3 Rematch Room Warp
  8AEC / 78AFC : Song ID to play after Warp (Wily Stage 3)

  8AF7-8B37 : Subroutine - Special stuff to do if warping to Rematch Room

8B38-8B8C : Routine : Conditional $528 setting (MM sprite bg-priority bit) for Wily Stage 3

8BE5-8C27 : VRAM Buffer Source - Additional Warp at Rematch Room in Wily Stage 3 (Used when warping back from robot master battle)

8C28-> : Data table for 8B38
8C33-> : Data table for 8B38
8C3E-> : Data table for 8B38

8C49-8C64 : MM Movement - 10 - Enter boss room - walk a bit forward
8C65-8CBC : MM Movement - 12 - Wily Stage 4 - Wily defeated.

8CBD-8CCB : Subroutine - Jump to Current Weapon's Init Code

8CCC : Mega Buster Init Code
	8CF6 : B button is released here. It's either a Full or Incomplete Charged shot.
	       Counter $35 is compared to #$20 at 8CF2. If it's only a bullet, it goes to $8D59. More than #$20, it
	       goes on.

8DD5-8E3A / 78DE5-78E4A : Entry Point of Rush Coil / Rush Marine / Rush Jet Code
	8DFD / 78E0D : If shooting, it comes here.

8E3B-8E9C : Rain Flush Init Code

8E9D-8F16 / 78EAD-78F26 : Entry Point of Wire Item Code. RTS is not used by next ASM.

8F17: Entry Point of Balloon Item Init Code
	8F17-8F97 Balloon Item - Init Code
	IMPORTANT NOTE : RTS at 8F97 is used by next function.

8F98-9044 : Entry Point of Dive Missile / Drill Bomb / Ring Boomerang / Dust Crusher Init Code

	8FE2 : Common Code for Setting Weapon's Object ID, etc.. (for the 4 weapons of $8F98)

	RTS : USED BY $9045.

9045 / 79055: Entry Point of Pharaoh Shot Code

	79110 : Pharaoh Shot Code

	The following speeds are chosen by the following bits :
		Take the direction bits value you want, and divide them by 4.

	9217-9219 / 79227-79229 : Horizontal low speed table of Pharaoh Shot
	921A-921C / 7922A-7922C : Horizontal high speed of pharaoh shots
	921D-921F / 7922D-7922F : Vertical low speed of pharaoh shots
	9220-9222 / 79230-79232 : Vertical high speed of pharaoh shots

914E-91C1 : Entry Point of Flash Stopper Code
	RTS IS USED BY FOLLOWING CODE

91C2 / : Entry Point of Skull Barrier Code

91EB-91F8 / 791FB-79208 : Weapon Init Code Address - Low
	Mega Buster	91EB / 791FB
	Rush Coil	91EC / 791FC
	Rush Jet	91ED / 791FD
	Rush Marine	91EE / 791FE
	Rain Flush	91EF / 791FF
	Wire Adaptor	91F0 / 79200
	Balloon Adaptor	91F1 / 79201
	Dive Missile	91F2 / 79202
	Ring Boomerang	91F3 / 79203
	Drill Bomb	91F4 / 79204
	Dust Crusher	91F5 / 79205
	Pharaoh Shot	91F6 / 79206
	Flash Stopper	91F7 / 79207
	Skull Barrier	91F8 / 79208

91F9-9206 / 79209-79216 : Weapon Init Code Address - High
	Mega Buster	91F9 / 79209
	Rush Coil	91FA / 7920A
	Rush Jet	91FB / 7920B
	Rush Marine	91FC / 7920C
	Rain Flush	91FD / 7920D
	Wire Adaptor	91FE / 7920E
	Balloon Adaptor	91FF / 7920F
	Dive Missile	9200 / 79210
	Ring Boomerang	9201 / 79211
	Drill Bomb	9202 / 79212
	Dust Crusher	9203 / 79213
	Pharaoh Shot	9204 / 79214
	Flash Stopper	9205 / 79215
	Skull Barrier	9206 / 79216

9207-> : Particle Weapons - Sprite ID's to Init

922B-926C : Subroutine - Check for Ladder grab.

7927D-7928C : Buster Charge - Megaman Palette Color 1 variants
7928D-7929C : Buster Charge - Megaman Palette Color 2 variants
7929D-792AC : Buster Charge - Megaman Palette Color 3 variants
	For the three above, it takes an index. For example, if index is 2, and if the Color 1 need to be changed,
	it is picked in 7927D + 2 = 7927F.
	Note : The index is first going in loop from 4 to 7, then from 08 to 0B, and then from 0A to 0D.
	When released, it does 00, 04 and 0C.
	Index 00 to 03 and 0D and 0E use are unknown. I think they're never used.

929D-92C4 : Buster Charge - 4-color palettes, after releasing charged shot.
	The 1st color of each palette is never read.

	Sometimes the color #2 of the 4 color palettes are read,
	other times the last 3 colors are read.

	There is palette updating ASM at $8D0C in the same bank as well as $804E.
	RAM location $36 is used specifically for this.

	The way palettes are updated after the charged shot is released,
	seems to be programmed sloppily. Look at the ASM at $8D0C.
	In detail, the Y register isnt increased when copying the palette, thus
	only one color is copied to Megaman's whole palette. Second, there is
	no write to RAM location $18, causing the palette buffer to be updated
	to the PPU randomly or not at all.

	Possible 4-color palettes read after B button is released:

	08 : Immediatedly at 8D0C, random updates.
	09 : Immediatedly at 8D0C, random updates.
	00 : Immediatedly at 8D0C, random updates.
	07 : At 804E next frame, sometimes after 08/09 at 8D0C, buffer written to PPU's VRAM.
	01 : At 804E next frame, after 00 is read at 8D0C. Buffer written to PPU's VRAM.

	The other 4-color palettes are used too, seemingly only possible if a full
	charged shot is released upon entering a boos chamber.

92C5-938E : Subroutine - Toad Man stage / Cossack Stage 1 Check.
	Block Types "Glide Left" / "Glide Right" / "Special" (Snow & Water Falling on Mega Man's head) handler.
	Handler for "Slippery" block type.
	ASM for "wind" effect in Toad Man's stage.

  92D6 / 792E6 : Stage ID for which level the "Rain" and "Glide effect" are functional in.
  92DC / 792EC : Wind effect of Toad Man's stage happen for screen less than the one a this
		 address
  92E4 / 792F4 : Direction for Toad Man Rain

  9314-> Toad Man Stage - Glide Left/Glide Right ASM
  9332 / 79342 : Glide speed, low byte
  933A / 7934A : Glide speed, high byte
  9341 : Common ASM for this routine - (Wind effect/Glide)
  9343-> Toad Man Stage - Wind effect ASM

  9346 / 79356 : Strenght of Toad Man Rain
  934A / 7935A : Frequency per turn of Toad Man Rain

938F : Subroutine - "Slippery" block handler.

793A2 : Stage ID for which level the "Slippery" Block Type is functional in. Contents is $08 (Cossack Stage 1).
	2nd of 3 checks that need to be changed.

793AE : "Slippery" block effect - Effect deplete - Frame Counter bitwise AND, deciding ratio of depletion.
	Contents is $03. $07 makes it twice as slow, $0F four times slow, $01 makes it twice as fast, etc.

93C9-93DA : Put #$00 in $A3, $A7, $A8, #$01 in $A5, #$00 in $A6 (separated from $A3, $A7, $A8).
	Called by $93DB.
	Return Value : Set carry flag, meaning for $93DB stage is not Cossack Stage 1

93DB-9403 : Subroutine - Manages A3 to A8, no matter the stage (call $93C9 if not in Cossack Stage 1)
		Return : Carry Set if stage is Cossack Stage 1.

793EE : Stage ID for which level the "Slippery" Block Type is functional in. Contents is $08 (Cossack Stage 1).
	3rd of 3 checks that need to be changed.

79431: "Slippery" block effect - Effect increase - Frame Counter bitwise AND, deciding ratio of depletion.
	Contents is $01. $03 makes it twice as fast, $07 four times fast, etc.

946E / 7947E : If no direction (right or left) button pushed, JUMP to $93C9. Put values in $A5-A8.

948C-94D0 : Subroutine - Water - Bubble generator.

94D1-9570 : Dialogue Data (1)
9571-95B5 : Dialogue Data (2)
95B6-95F1 : Dialogue Data (3)

95F2-95F4 : Dialogue - Offset - Low
95F5-95F7 : Dialogue - Offset - High

95F8-95FF : Unused space

[Weapon Menu]

9600-96CE-> : Weapon Menu ASM

  965D - 967A : Draw all the 32*32 of the Weapon Screen in the current screen.

  967B-9685 : Load the Weapon Menu Palettes. Also Draw the sprites from $9E51 table.

  9686-96AE : Draw Weapons or not, dependings if it is achieved.

  96D7-96E7 : The loop on the weapon menu. It will go out only if start is pushed, to $9720.

  968E : This is where it sets up the standard sprites to Spr-DMA Memory.

  96E8-971F : E-Tank use code
  9720 : Start/A button pressed
  9731 : Weapon selected, leaving menu.

  973A : IMPORTANT PLACE OF CODE! HERE, IT SETS #$00 in $30, meaning that whatever Mega Man was doing, he is now
  having the standing state.

  974A-976E : Rush Coil/Marine/Jet Selected - Special Code

  97AD : Load the Primary Scroll GFX of the selected Weapon.

983E : When closing the menu, this delete the weapons in slot X = 1 to X = 4

9885 : Weapon Menu - Draw Slot for Achieved Weapon/Item (Setup VRAM Buffer)

98D0-9921 : Weapon Menu - Draw E-Tank / Extra Life quantity

9922-9A85 : Weapon Menu - Button Press Handler ??
  9992 : For Highlighting weapon selected, and turning gray the old one.
  999E : Continous Attribute Table Updater?
  9A3A-9A85 : Update Rush/Megaman Sprites
  (9A3A called as Sub when showing Rush animation when Rush Items chosen.)

9A86-9AE2 : Weapon Menu - Draw Slot for Unachieved Weapon/Item (Setup VRAM Buffer)
9AE3-9B02 / 79AF3-79B12 : Weapon Menu Palette
	9AFB-9AFE / 79B0B-79B0E : Coloring of hilighted Pharaoh Shot,
				  Flash Stopper, Ring Boomerang

9B04-9B3E / 79B14-79B4E : Megaman Weapon Palettes

The two following tables are where to draw the energy bar for each weapon. Written at $0780 and $0781:

9B3F-> : Nametable VRAM Address for each menu entry - Low
	For the cursor, look at B0 to BE, take the desired weapon, and substract B0. You have the index.
9B4E-> : Nametable VRAM Address for each menu entry - High
	For the cursor, look at B0 to BE, take the desired weapon, and substract B0. You have the index.

9B62-9B6C 79B72/79B7C : Weapon Menu - VRAM Buffer Source: (Quantity digits for E-Tank / Extra Life stuff) (2327)
	Note : Digits are corrected after.

9B71-9B7D-> : What to write to $A0 (Current Weapon) for each Weapon Menu selection. $0138 is the index.

9B81 : Menu Entry - 1st Attribute Data Byte Offset (A index for the $9B90
attribute table, loaded with the $0138 as an index.)
9B90-9B96-> : Menu Entry - 1st Attribute Datas. Contains datas for the $0780 tables, index by $9B81.
Contains datas for the $0780 Buffer to know, if the weapon is selected, which TSA table
to edit the palette.
All the datas will be written there in orders. So first are the two pointers, then
the byte for number of datas, then the datas.
The datas are the coloring of a selected weapon.
	Bit 0-1 : Palette of TSA Block down right
	Bit 2-3 : Palette of TSA Block down left
	Bit 4-5 : Palette of TSA Block up right
	Bit 6-7 : Palette of TSA Block up left

	X = 00 : Mega Buster
	X = 07 : Flash Stopper
	X = 0E : Rain Flush
	X = 15 : Drill Bomb
	X = 1C : Pharaoh Shot
	X = 23 : Ring Boomerang
	X = 2A : Dust Crusher
	X = 31 : E-Tank
	X = 37 : Dive Missile
	X = 3E : Skull Barrier
	X = 45 : Rush Coil
	X = 4C : Rush Marine
	X = 54 : Rush Jet
	X = 5B : Wire Adaptor
	X = 62 : Balloon Adaptor

9BF9 : Menu Entry - 2nd Attribute Data Byte Offset (A index for the $9C08
attribute table, loaded with the $0139 as an index.)
9C08-> : Menu Entry - 2nd Attribute Datas. Contains datas for the $0780 address.
All the datas will be written there in orders. So first are the two pointers, then
the byte for number of datas, then the datas.
The datas are the coloring of a not selected weapon.
	Bit 0-1 : Palette of TSA Block down right
	Bit 2-3 : Palette of TSA Block down left
	Bit 4-5 : Palette of TSA Block up right
	Bit 6-7 : Palette of TSA Block up left

9C70-9C73-> : Weapon Menu - Some Sprite Data
9D30 : Sprite letters - Sprite DMA Buffer index for menu entry's sprite letter, if
	it has one letter in its text that is sprite rather than bg.
	If none of the letters are a sprite, the value is 00.
	One byte for each menu entry.
9D3F-9D62 : Weapon Menu - Megaman and Rush Sprites Byte-offset Data for 9D63
	(Two bytes for each Weapon/Item, one for two possible animations.
	The bytes points to where in the 9D63-9E50 to start reading sprites from.)

Sprite Sets - Indexes to 9D3F:
	00-17 : Megaman
	18-19 : Rush (Animation)
	1A-1B : Rush (Rush Coil Selected)
	20-21 : Rush (Rush Marine Selected)
	22-23 : Rush (Rush Jet Selected)

9D63-9E50 : Weapon Menu - Megaman and Rush Sprite Data
	9D63-9D88 / 79D73-79D98 : Mega Man
	9D89-9DB4 / 79D99-79DC4 : Rush standing : see 79DC7
	9DB7-9DBE / 79DC7-79DCE : Rush's moving tail
	9DC1-9DE4 / 79DD1-79DF4 : Rush Going into Marine Or Jet Manque queue
	9DE8-9DF6 / 79DF8-79E06 : Rush Coil (only the spring and the back, since the rest is the same as Rush standing)
	9DF9-9E28 / 79E09-79E38 : Rush Marine
	9E2B-9E4E / 79E3B-79E5E : Rush Jet

9E51-9E7C : Weapon Menu Standard Sprites - Sprite RAM Setup
	9E51-9E60 / 79E61-79E70 : Life Word
	9E61-9E64 / 79E71-79E74 : "V" of Dive Missile
	9E65-9E68 : "C" of Coil
	9E69-9E6C : "M" of Marine
	9E6D-9E70 : "J" of Jet
	9E71-9E74 : "W" of Wire
	9E75-9E78 : Left part of Mega Man's Head
	9E79-9E7C : RIght part of Mega Man's Head

9E7D-> : VRAM Buffer - Name Table data to write to 2nd Name Table under this condition:
	Returning from weapon menu to Wily Stage 3, Second phase of battle with Wily.
	(Part 1)
9EE7-> : VRAM Buffer - Name Table data to write to 2nd Name Table under this condition:
	Returning from weapon menu to Wily Stage 3, Second phase of battle with Wily.
	(Part 2)

9F28 : Weapon Menu - Selection Black-out Template VRAM buffer
9F45-9F53 : Weapon Menu - Selection Black-out Name Table VRAM Address - High
	For the cursor, look at B0 to BE, take the desired weapon, and substract B0. You have the index.
9F54-9F62 : Weapon Menu - Selection Black-out Name Table VRAM Address - Low
	For the cursor, look at B0 to BE, take the desired weapon, and substract B0. You have the index.

9F63-9FFF / 79F73-7A00F : All unused.

7A010 <-> 7C00F (Bank $3D by $2000)
-----------------------------------

[Object ASM Bank #5]

MEMORY TYPE $A000-$BFFF:

A000 : ?? Object ASM (Used by Ring Man Rainbow Bars)

7A267-7A27A : Rainbow bars - Index data for each Screen Position.
7A27B : Rainbow bars data.
	Data chunk (8 bytes):
	0-1: Nametable VRAM Update Address. (Points to Upper-Left tile in Block to the right end of bar.)
		If Direction is Right, of Block to the left of bar.
	2: Object X coordinate. (Points to mid of bar) (is ?0 or ?8) (Same as X placement of enemy)
 	3: 16x16 Level TSA TBlock to draw on void space.
	4: Object Direction. (Direction which bar is to disappear, $1: from right, $2: from left.)
	5: 16x16 Tile Y and X coordinate of bar. (Points to Rightmost block in bar, Leftmost if direction is Right.)
		bit0-3: 16x16 Tile Block Y coordinate
		bit4-7: 16x16 Tile Block X coordinate.
		Stored to Object Private Memory 4 ($4B0-$4C7) and Enemy HP ($450-$467)
	6: Bar Length - in 16x16 Blocks. (Written to Object's Substance and Shape data byte?)
	7: X Coordinate of Right or Left end of bar. (Object X Coordinate to set when Megaman steps on bar.)
		Left if direction is Right
	    This is always '?8' (? is high nibble of hex value)

A55B-A59C : Hippo's Missile Object ASM (Object ID $25)
	A5A5-> : Sprite ID Table

A5D3 : Object ID $90 ASM

A7E5-A805 / 7A7F5-7A815 : Snailbot's Bomb Object ASM (Object ID $2C)

A846-A876 : ??? Object ASM (Object ID $2D)

A877-A8BD / 7A887-7A8CD : [Ring Miniboss Defeat Handler] Object ASM (Object ID $3A)

	A8BE-A8C2 / 7A8CE-7A8D2 : Tables used by $A877.

A90D-A97F / 7A91D-7A98F : Bright Man's Platform (Red)		NOTE : RTS UBT
A980-AA1E / 7A990-7AA2E : Bright Man's Platform (Green)		NOTE : RTS NUBT
AA1F-AA66 / 7AA2F-7AA76 : Bright Man's Platform (Green & Red)'s
				Table (Y quantity to add to platform)	NOTE : RTS N

AA67-AA85 : ??? Object ASM (Object ID $4B)

AD0C-ADCF : Drill Man stage switch Object ASM (Object ID $5B)
	Also entry points of Unused Object ID's $57, $58, $59 and $5A.

AFA6-AFAF : Dive Man stage moving spikes Object ASM (Object ID $CF)
AFB0-AFB6 : Water Splash Object ASM (Object ID $6F)

B033-B144-> : ??? - Object ID $74 ASM.

  B13C-B144-> : Tbl

B148 : Cossack stage 1 boss Object ASM (Object ID $87)
  B148 : Initial entry point

  B319 : Subroutine
  B4C4 : Subroutine
  B5D2 : Table
  B5DE : Table

  7B5FB-> : Floor Destruction - Name Table update data

B65C : Object ID $89 ASM (Single RTS)
B65D- : (Object ID $92)

B796 : (ASM here which writes $94 to $300-$317)

B9D6 : Subroutine of B65D.

BA8B : Object $94 ASM

BD9A-BFFF : Unused junk space.

7C010 <-> 8000F (Bank $3E <-> $3F by $2000) - HARD-WIRED BANK
-------------------------------------------------------------

MEMORY AREA: $C000-$FFFF

[Interrupts]

ASM:
C000-C126 : NMI! (Main Body)
C127-C148 : NMI - Sound Engine Handler
C149-C157 : MMC3 IRQ Handler
C158-C310 : Various MMC3 IRQ Effect ASM
  C30E : 00 Jump Point (= No effect)
  C158 : 01 Entry Point
  C1A8 : 02 Entry Point
  C1E0 : 03 Entry Point
  C1E9 : 04 Entry Point - Dust Man Ceiling Scanline IRQ Effect
  C20F : 05 Entry Point - Dive Man Waves Scanline IRQ Effect
  C235 : 06 Entry Point - Dr. Cossack Battle Scanline IRQ Effect
  C252 : 07 Entry Point - Dr. Cossack Stage 2 Boss - Scanline IRQ Effect
  C2A0 : 08 Entry Point - Dr. Cossack Battle End Scene - Scanline IRQ Effect
  C2BF : 09 Entry Point - Giant Metool Battle / Wily Stage 3 Battle - Scanline IRQ Effect
  C2DC : 0B Entry Point
  C2FE : 0A Entry Point - Train Ride Ending Scene - Scanline IRQ Effect
C311-C317 : MMC3 IRQ Tail (Return Handler)

Data:
C318-C323 : Scanline IRQ Effect - ASM Addresses - Low
C324-C32F : Scanline IRQ Effect - ASM Addresses - High

ASM:
C330-C354 : Writing of VRAM Buffer to VRAM
	Note : This function is in some case accessed directly at $C334.

C355-C35E : Disable NMI (PPU Control Reg #1 / $2000 / $FF - AND with #$11)
C35F-C368 : Enable NMI (PPU Control Reg #1 / $2000 / $FF - OR with #$80)
C369-C372 : Disable Display (PPU Control Reg #2 / $2001 / $FE - Write #0)
C373-C37C : Enable Display (PPU Control Reg #2 / $2001 / $FE - Write #$18)

C37D-C3D4 : Joypad Memory Update Routine (Read from Joypad Regs, store to $14-$17)

C3D5-C420 : Pattern Table / Name Table / Attribute Table Clear Routine
	[Usage: A = Pattern Table / Name Table - High VRAM Address,
	 X = Byte value to fill with, Y = If Pattern Table (A < $20): # of $100-byte chunks
	 to fill/clear CHR-RAM with from start address.
	 - or - if Name/Attribute table (A => $20): Byte to fill Attribute Table with.
	 (If Name Table start address is given ($20, $24, $28 or $2C), it will automatically
	 clear its Attribute Table as well with value in Y.)]
	 Not to be called when Display is on.
C421-C437 : Sprite DMA Buffer RAM - Clear Routine
C438-C450 : Object Memory Arrays - Clear Routine
C451-C4B7 : Palette Fade Up/Down Routine
  C451 : JSR Entry Point for Fade Up
  C457 : JSR Entry Point for Fade Down
C4B8-C4D5 : Address Jumptable Handlers

C4D6-C50B : 2nd Thread ASM (Random Generator, Palette Animation)

C50C -> : Start-Up ASM (Starting Point of Main Thread)

C539 : When gameplay is about to begin, program returns here. (Seems to happen only at first time
	gameplay starts)

  C541 : If MM looses a life (no Game Over), game jumps back here.
  Also jumps back here from C82C.

  C5A6-C5C3 : This is where the first screen is drawn to Nametable before fading palette up.

  C6D4-C706 : Special case writes to $EF, for Cossack Stage 1, Pharaoh Man's Stage and Toad Man's Stage.
		There are also some of those cases $CF67.

  C68B : Draw exception for Wily Stage 3 for Screen Position #9. (Rematch warp room)
  If game starts on this screen, and all robot masters have been defeated,
  it will draw the additional teleporter to the Wily battle here and also
  set up an additional sprite.

  C6CD : Execution Point - Palette is Faded up when Level begins

C6F3-C7F5 : Main Game Loop
  C6F3 : Give Sprites BG Priority in Cossack Stage #1 (Continuos Check)
  C707-C73F : Check if Weapon Menu is to be opened.
    C731-C73D : Entering Weapon Menu
  C740-C74C : Handle Megaman's Movement ASM
  C74D-C759 : Handling of Object ASM
  C75A-C765 : Handle Scrolling
  C766-C775 : Handle Initalizing of Stage Enemies/Items
  C776 : Call $E0FA : Ring Man Rainbow Bars handler loop add-on.
  C779 : Call $E35C : Auto Screen Updates handler. (Checks memory $1B/$1C).
  C77C : Call $E262 : Auto 32x32 Tile redraw.
  C77F : Call $E492 : In-Game Palette Fade Handler.
  C782-C784 : Call $E49C : Drill Man's Stage-specific ASM?
  C785-C787 : Call $E4DD : Dust Man stage Shootable Blocks loop add-on.
  C788-C791 : Update Megaman's Horizontal movement speed ($37 copied to $3A8, $38 copied to $3C0.)
  C792-C7B3 : Mid-Point Pass Check?
  C7B4-C7BD : Updating of Sprite DMA based on Object Sprites.
  C7C6 : Return to Thread Handler (JSR $FF1C) (And Wait for Screen Refresh)
  C7CB : If memory $30 is $07, $08, $11 or $13, it counts down mem $133/$134 until 0 and jumps to $C6F3, else
	 to $C7F6.
  C7F3 : End. Return to C6F3

C80B-C852 : Decides what to do when gameplay ends by different means.
  Can go to Ending and Credits, can go to Weapon Get or Password screen
  or Cossack/Wily stage maps, can restart gameplay if megaman lost a life
  or got Balloon or Wire adaptor, or go to Game Over screen.

  C82C : When gameplay is about to begin, program returns here.
  (All times expect the first time of a playthrough)

C853-C85A / 7C863-7C76A : Megaman's Palette

C85B-C86A : Sound ID to Init for each Level.
C86B-C87A / 7C87B-7C88A : Bits to OR with $528 (Megaman's Sprite Flags, see Mem 528-53F) for each Level.
C87B-C88A / 7C88B-7C89A : Y Coordinate to give sprites below it background priority, for each Level. (Written to $EF).

C88B-C8AA / 7C89B-7C8BA : Screen Preset where Mid-Point / Boss-Point is passed
  2 bytes for each Level ID (Mid-Point, then Boss-Point).
  This data must be set for Mid-Point / Boss-Data to work.
  For continue-points that arent used, the value is set to $FF.
  note: This defines the screen where the continue point is activated, while Bytes 1 and 5 in the data
  below defines where MM will start if defeated.

C8AB-C92A / 7C8BB-7C93A -> : Mid-Point / Boss-Point Data for All Stages
  Each stage has 8 bytes.
  byte 1 : Mid-point: Screen Position
  byte 2 : Mid-point: Scroll Map Position
  byte 3 : Mid-point: Primary Graphics Load ID to load (00 = None)
  byte 4 : Mid-point: Palette Set
  byte 5 : Boss-point: Screen Position
  byte 6 : Boss-point: Scroll Map Position
  byte 7 : Boss-point: Primary Graphics Load ID to load (00 = None)
  byte 8 : Boss-point: Palette Set

C92B-C96D : Wily Stage 3 rematch warp room -
	VRAM Buffer Source for drawing 9th teleporter (If all clear).

[Scrolling]

ASM:
C96E-CBFC-> : Scrolling ASM
  C981-C9D0 : Start of Cossack Stage 3 Auto Scrolling Code.

  CACF : Reading of Multipaths (Horizontal Scrolling)

  CAFF : Execution Point - MM moving through boss door / (Horizontal Scrolling) scrolling right check. Jump in from $CA6F

  CB43 : Execution Point - Handling Boss Doors

  Data in ASM:
    7CB90 : Megaman - Movement Speed when scroll right - Low
    7CB98 : Megaman - Movement Speed when scroll right - High

  CC03-CC12 : Boss-Doors: Screen Position of level to skip boss-door wrap down after entering boss screen.
	(0 means no screen. This data is set for most Cossack/Wily levels.)

  CC13-> : Scrolling ASM (Vertical Scrolling)

  CCD0 : Reading of Multipaths (Vertical Scrolling)

  CDD5 : Point - Megaman approaches a new screen

Data in ASM:
    7CE08 : Vertical Screen Scroll Speed - Down
    7CE18 : Megaman - Movement Speed when climbing ladders Down - Low
    7CE20 : Megaman - Movement Speed when climbing ladders Down - High
    7CE32 : Vertical Screen Scroll Speed - Up
    7CE40 : Megaman - Movement Speed when climbing ladders Up - Low
    7CE48 : Megaman - Movement Speed when climbing ladders Up - High

CEE1-CFA0 : Handle Stage Part Data (Scroll Map Data), set up memory and registers for new screen.
	CEEA : Check Palette Set Byte for current Scroll Map.
  CF67-CF9C : Special case writes to $EF, for Cossack Stage 1, Pharaoh Man's Stage and Toad Man's Stage.
		There are also some of those cases which use table $CFA1 at $C6D4.
  CFA1-CFB0 : Value to write to $EF for each Scroll Map, in Toad Man's Stage.

CFB1-D04D -> : Horizontal Scrolling - Nametable Updates (Setting up of buffer)
	D04E-> : Attribute Table AND Table with AT Work RAM (640->)
	D050-D051 : Attribute Table AND Table with New Attribute Byte

D052-D142 : Vertical Scrolling - Nametable Updates (Setting up of buffer)
D143-D16E : Nametable Updates - Some Routine (Soubroutine of Scrolling ASM)

D16F-D170 : Table Used by D052
D171-D172 : Table Used by D052
D173-D176 : Table Used by D052

D177-> : Table Used by D052
D17B-D17C : Table Used by D052 and D143
D17F-D1C4 : Scrolling Nametables Updates - Return 8x8 Tiles Used in a 32x32 Tile field.
	$29 is 32x32 Tile field in Screen to return data for. (Note: Refers to area in screen, not a 32x32 tile set in stage data. The routine reads Screen Data based on $29.)
	Needs $20-$21 set up.
	Sets up $7C0-$7CF and returns Attribute Table byte in $10.
	Used by both CFB1 and D052

D1C5-D24A : Nametable Updates Special Exceptions - Sub of D17F

	7D1D8 : Stage ID for Hidden Blocks/Switch feature (graphics updates)

	D1CF-D22F : Ring Man Rainbow Bars Exception.
		For 16x16 Tiles:
			$09 (Rainbow Bars - First Part)
			$8C (Rainbow Bars - Second Part)
		This thing's purpose is to draw black tiles instead if there's a Rainbow Bar at nametable
		row/collumn being updated, if that part of the bar is cut off/void/black/w.e.

	D230-D24A : Drill Man "Switch" Exception (Change Tile Palette to #1 if Screen's Switch is turned On. See Mem $680.)

D24B-D294 : Nametable Updates - Dust Man Shootable Block Exception - Sub of D17F
	This make the shooted Shootable Block non solid.

D295-D2B9 : Scroling Nametables Updates Sub - Read Screen Data and set 32x32 Tile Data Address.
	D2A2 : Entry Point from D2FC (Past Bankswitching)

D2BA-D2BD : Table used by D17F and D24B
D2BE-> : Table used by D052
D2C6-> : Table used by D052
D2CE-D2FB : Nametables Updates - Set a screen's Screen Data Address to $20/$21
	(Y is Screen Position, $22 is Stage/Level.)
	Sub of CFB1 and D052
	D2D7 : Entry Point from D2FC (Past Bankswitching)


D2FC-D427: Hit Detection : Objects with Stage Walls. (Vertical Detection/Vertical Collision)
	[Arg: Y = Shape data couple index.]
	Note : if calling this function directly, it only checks collision with the sent pointer,
	not the Shape data couple.

	Returns result in Mem $10, $11, and
	$45/$46/$47/$48/$49 stores the TSA ID from left to right under : example, for Mega Man there are values in $45, $46, $47

	$10, Same as $41, in most case. In fact, $10 contains the bits of every object
	that is touched, because every time something is touched, we take this new
	value and make a ORA of $10. For example, if $10 contains #$10 (solid) and we hit
	water (ORA #$60), it contains #$70.
	?$11 : Contains the Y position of the hit block.
	$41 : 16x16 Tile Type of 16x16 Tile Object has hit with highest
	value (see $41 at the start of the document). (Result of D2FC).

	D397 : Hit Detection - Check for Rainbow Bar
	D39A : Hit Detection - Cossack Stage 1 Boss Check
	D39D : Hit Detection - Dive Man? Drill Man?
	D3A0 : Hit Detection - Dust Man Shootable Blocks
	D3A3 : D661 Call - Wily Stage #3 - Virtual Platform in rematch room after all clear.

D428 : Hit Detection : Objects with Stage Walls. (Horizontal Detection/Horizontal Collision)
	Returns result in Mem $10, and $45/$46/$47

	D4C8 : D599 call
	D4CB : D5DA call
	D4CE : D5E6 call
	D4D1 : D624 call
	D4D4 : D661 Call - Wily Stage #3 - Virtual Platform in rematch room after all clear.

D53A- : ??
	Sub of D2FC

D552-D58C : Dust Man Shootable Block Exception ??
	Sub of D2FC

D58D-D598 : ??

D599-D5D9 : D2FC Sub (Ring Man Rainbow Bars?)
	7D5B1 : Stage ID compare with #$04 (Rainbow bars related?)
D5DA : D2FC Sub (Cossack Stage 1 - Mothraya boss extra stuff)
D5E6-D623 : D2FC Sub (TSA Block exceptions: Dive Man Waves, Drill Man conditional surface, Ring Man "Ring-guy" miniboss with blocked path.)

	Every structure are passed in this, in $29. We check all of them, and depending
	on the level we are in, we check if for the block there is an exeption at a certain
	moment. For exemple, every turn, all the block in Ring Man stage are checked. When
	Whapper is defeated, some blocks must be destroyed, so here, when we check those
	blocks, if Whapper is defeated, we destroy them.

	D5EF / 7D5FF : Stage ID for Hidden Blocks/Switch feature (physics)

	D5F2-D60D / 7D602-7D61D : This is here we choose to not consider the
	Ring Man's Whapper blocks for the collision.

D624 : D2FC Sub (Scanline Effect #4?)
D661-D690 : D2FC Sub (Wily Stage 3 - Virtual Platform in rematch room after all clear.)

D691-D695 : Ring Man's stage: Screen $0A Ring Miniboss:
	32x32 tiles which are free to pass when miniboss is defeated.

D696-D69D : Wily Stage #3 - Rematch Room - Virtual Platform data

D69E-D6DD : Object/Wall Hit Detection (Vertical) - Shape Data - Offset - Low
D6DE-D71D : Object/Wall Hit Detection (Vertical) - Shape Data - Offset - High

	D71E-D807 : Object/Wall Hit Detection (Vertical) - Object Shape Data
	Pointer		Address
	=======		=======
	00		D71E-D722	Down pointer has one more datas. It's done because there are some case
					which code needs to checks if there is a collision in the middle of Mega Man.
					It's done with ladder top for example : when grabbing it, it check if the middle
					coordinate point is touched. If so it is grabbed, else not because Mega Man is
					touching it but is too far.
	01		D723-D726

	18		D777-D77B
	19		D77C-D780

D808-D847 : Object/Wall Hit Detection (Horizontal) - Shape Data - Offset - Low
D848-D887 : Object/Wall Hit Detection (Horizontal) - Shape Data - Offset - High

D888-D99E : Object/Wall Hit Detection (Horizontal) - Shape Data
	Pointer		Address
	=======		=======
	00		D888-D88C
	01		D88D-D891

	0E		D8BF-D8C2
	0F		D8C3-D8C6

D99F-D9B6 : Called by F000. Has with Object movement to do.
D9B7-D9CC : Called by F049. Has with Object movement to do.
D9CD-D9E6 : Put Mega Man under of the hit block detected in D2FC.
	Called from F0F3, F225, and from certian megaman movement ASM (ROM offset 78507)
	Called when using Rush Marine.
	It's called after a call to $D2FC (and maybe others) because it uses the value it sets in $11.
	Call it if with movement up, there is no more any contact with water. If so, using $11, it
	set back item in water.

D9E7-DA04 / 7D9F7-7DA14 : Put Mega Man on top of the hit block detected in D2FC.
	Uses $11 to set MM back to position without collision
	In $D2FC, we could find exactly what it is, since the $11 used come from
	this function. (when called by $F3C1).
	Called from F0BC, F1F5, F3C1 and F3DE.

DA05-DA8A : Primary Graphics Load - Loader Routine
   [Use: X = ID]

DA8B-DABA : Scroll Graphics Load - Init Routine
   [Use: A = ID]

DABB-DB39 : Scroll Graphics Load - Handler/Writer Routine

DB3A-DB71 : Draw Sprites. (Write to $200-$2FF, which is later copied to SPR-RAM using DMA.)

DB72-DEE1 : Draw Object to $200-$2FF - X is Object Slot. This chunk of ASM also does all sorts of other stuff.

	DB8F : Is enemy out of Y screen? Use $0528 to know if it has bit to be alive.
		Also, if he has, he needs specific Sprite ID or object ID to survie (see $DBDA)
		This is the place where we check if an object is out of Y screen. If it's Mega Man, go to $DC14.

  DBDA-DBFF : A check by Object ID for some object that can survive even if out of screen.

  DC00-DC13 : Remove Properties of Object in Slot indexed by X Register. (This is called as Subroutine plenty of places.)
		Those properties are, with X index :
			$300, $450, $5A0, $5B8 and put #$FF in $438.

  DC14 : MM not in Y Screen #$00! Check if...
	ASM : Megaman falls down pit. code is at DC14. At dc1F is if it's the first time we come here.

  DC30 / 7DC40 : Falling down pit : Delay before gameplay refreshes - Low
  DC35 / 7DC45 : Falling down pit : Delay before gameplay refreshes - High

  DD5E-DD6D : Value for each Level, has with sprite invicibility to do. (When enemies are hit.)
    This value is Sprite Bank's Tile Usage data ID to use for "blink" effect.
    If the value is 0, it does palette blinking. (Used for Cossack/Wily stage bosses.)

  DD6E-DE49 : Update Object's Sprites to Sprite DMA Buffer - Continued (A = Actual Sprite Bank's Coordinate  ID, X = Object Slot)

  DE4A-DE71 : Subroutine - Actively copy parts of Source Palette to Palette Buffer. Done at all bosses.

  DE72-DE8C : Subroutine - Blink effect for Cossack and Wily bosses.

  DE8D-DEE1 : Jump-to point - Handle blink effect for mini-bosses. Jumps back to DD30.

DEE2-DEF1 : Draw Energy Bars (In order from 0 to 2)
DEF2-DEFF : Draw Energy Bars (In order from 2 to 0)

DF00-DF58 : Routine for setting up Energy Bars to Sprite DMA. (X = slot in the $0130 values)

  DF1E / 7DF2E : Y Coordinate of Bottom Sprite of all Energy Bars.

DF59-DF5B / 7DF69-7DF6B: Energy Bar Sprite Attribute Bytes
	DF59 / 7DF69: Megaman Health
	DF5A / 7DF6A: Weapon/Gadget Energy
	DF5B / 7DF6B: Boss Health
DF5C-DF5E / 7DF6C-7DF6E: Energy Bar Sprite X Coordinates
	DF5C / 7DF6C: Megaman Health
	DF5D / 7DF6D: Weapon/Gadget Energy
	DF5E / 7DF6E: Boss Health




If you want to free the two following code sections because you don't have Rain Flush anymore,
remove this JSR : $DB3A:20 5F DF  JSR $DF5F.
Also, note that 13A and 13B won't be necessary anymore.

DF5F-DFBD : Rain Flush effect handler - Updates registers and writes to Sprite DMA Buffer.
DFBE-DFF9 : Rain Flush Sprite Y and X setup data

DFFA-E0F9 / 7E00A-7E109: Upper Sprite Bank Data to use for each Object ID

E0FA-E20D : Some Ring Man's Stage Game Loop ASM. (Rainbow Bars)

E20E-E261 : Unused Routine! Might be old subroutine previously used for Rainbow Bars or Shootable blocks.
	The RTS at $E261 is used by $E262.

E262 : Draw 32x32 Tile location in Memory $1D if value => $80. Updates done to VRAM Buffer, not direct write to VRAM.

E333-E424 : Auto Screen Updates Handler
	E35C : JSR in point from game loop.

E425-E428 : Table used by E333

E429-E49B : In-Game Palette Fade Handler

E49C-E4DC : Drill Man stage-specific ASM - Attribute Table updates

E4DD-E571 : Shootable Blocks - Update Name Table and graphic. (Main Loop Subroutine)
	this function update the graphic of the block, not the type the type is d24b
	Jump in from $C785

	E572-E576 : Data used by D24B (Scrolling Nametable Updates - Dust Man Shootable Block Exception)
	Pointer to Shootable Block data for each screen from Screen Position $C.
	Note : This means that to read this table, you read $E566,X, where X is the
	X screen position where the Block met the Weapon.
	E577-E5C3 : More Data used by D24B (Scrolling Nametable Updates - Dust Man Shootable Exception)
	Shootable Block - 32x32 tile position data.
	Data pair:
	Byte 1: 32x32 tile position (Value $80-$FF ends data.) In a specific X screen.
	Byte 2: Bit Offset in memory ($680-$6BF) (E578 table)

	Summary : E572 tells where are the Structure datas for each X screen in the E577 table.
	Then, each data in E577 table is a structure where there are Shootable Blocks.
E572-E5C3 : Tables used by E4DD
E5C4-E5C7 : Table used by E4DD

E5C8-E679 : Boss Rematch room prepare routine.
  E67A-E681 : Scroll Graphics Load ID's to load for each robot master's rematch room.

E682-E750 : Boss Door Wrap-Up Drawing ASM
E751-E80F : Boss Door Wrap-Down Drawing ASM

E810-E813 : Table used by E751, and possibly E682.

E814-EFFF : Unused Random Data.

[$F000-$FDFF Region: Object ASM/Enemy AI Routines]

note: For most of these routines, object slot is loaded into X register as argument.

F000-F048 : Check for Object Hit with Walls (To the Right of Object, i think) + move. - (X = Obj Slot, Y = Arg)
	Routine Calls of this Sub:
	F22D
	F843
	F8F9
	F02A

F049-F087 : Check for Object Hit with Walls (To the Left of Object, i think) + move. - (X = Obj Slot, Y = Arg)

F088-F0C0 : ? Vertical check.. (Down). Also update movement
	[Carry is set if floor hit]

F0C1-F0F7 : ? Vertical check.. (Up). Also Update movement.
	[Carry is set if ceiling hit]

F0F8-F22C : Jump Movement (gravity influenced) + Floor collition check
	[Arg: Y = data index, Result: Carry Flag = Floor hit. Carry is Set if floor is hit.]

  F1CE : Code for Pharaoh Man's Quicksand tiles, check if in Pharaoh Man stage, and if
	 not, make a CLC and then a RTS.

F22D-F24A : Update X (Horizontal) Movement (Move Right)
F24B-F268 : Update X (Horizontal) Movement (Move Left)
F269-F288 : Update Y (Vertical) Movement (Move Down)
F289-F2A6 : Update Y (Vertical) Movement (Move Up)
		Identical fo $F2D8.

F289-F2A6 : Subtract Y coordinate according to Movement Speed.

F2A7-F2B7 : Update Vertical Object Movement (Jump). No wall hit detection. (gravity influenced)

F2B8-F2D7 : Sprite Movement Up / Down according to Speed (F17C)

F2D8-F2F5 : Update Y (Vertical) Movement (Move Up)
		Identical fo $F289
		Called at $F1FE (function $F0F8)
		Called at $F2B2

F2F6-F323 : Sprite Movement Up / Down according to Gravity (F1B0)
	    Note : It also limits the vertical speed to F900.

F324-F32E : Set Vertical Movement Speed to FF00.

F32F-F37B : Functions whichs makes checks before calling $F37C. The big difference with calling directly
	$F37C, it is that it checks if Mega Man is on enemy (like with Hover enemies in Pharaoh Man
	stage). For the Whale in Dive Man stage, it uses an exception to go to $F37C.
		Used for Whale Sucking, Pharaoh Man's Hover enemy, Rush Jet and maybe more.
	[Arg: X = Object index which makes Mega Man moves with him
	Object direction bits as the direction where Mega Man goes]

	IMPORTANT NOTE: The big problem is that it's often called after the object moved. So if for example you jump
	on Rush Jet, but are just on the edge of it, it will move before, then this function will be called, and Mega
	Man is not anymore over Rush Jet, si he'll fall from it.

F37C-F3C0 : Routine for Dust Man's suck action. Also Dive Man's whale.
	NOTE : It is called by $F32F, a function which checks few things before calling
	$F37C, like if Mega Man is in contact with object before (exemple with Hover in Pharaoh Man's stage).

F3C1-F3EC / 7F3D1-7F3FC : Check if Mega Man had a Vertical collision with a wall.
Take Y as Vertical Wall Detection ID, depending if Mega Man is
sliding, or standing. (#$02 if not sliding, else it's #$04).
If he had a Vertical Collision while on the platform, call $D9E7, which put Mega Man
on the hit floor)
	Used by Bright Man's Green Platform (not the Red one)

F3ED-F3FF : Update Horizontal movement + Check for Object hit with Walls, both Left and Right [Arg: Y = Shape data couple index.]
	(When function returns, Carry Flag contains wall hit status. If set, a wall has been hit.)
	Function also update $0528 Flag.

F400-F412 : Update Vertical movement + Check for Object hit with Walls, both Above and Below. [Arg: Y = Shape data couple index.]
	(When function returns, Carry Flag contains wall hit status. If set, a wall has been hit.)

F413-F433 : Update Horizontal Object Movement.
F434-F445 / 7F444-7F455 : Update Vertical Object Movement. (Not gravity-influenced)

F446-F451 : Set Sprite ID. ($558,X) [Arguments: A = Sprite ID]

F452-F49B : Duplicate Object, with given sprite id. [Arguments: A = Sprite ID, Y = Destination Object Slot]
	NOTE : OBJECT ID WILL NEED TO BE SET.
  F46B : Jump-in point from $F49C routine.

  F490-F49B : Used as subroutine in various ASM: Set sprite of object in slot Y.

F49C-F4DB : Set Object Position Relative to Other Object [Arguments: $10 = Relativity Pointer,
	    Y = Destination Object Slot, A = Written to $558,Y (Sprite ID), X = Object from
	    which the new object is positionned.]
	    (Uses tables F50B, F573, F5DB and F643, with pointer given in $10)

	    TABLES
	    ******

	    F50B / 7F51B  : How far from the other object (Horizontal)
			Values depends on F573 :
				If F573 is 00, values goes from 00 to FF
				If F573 is FF, values goes from FF to 00
	    F573 / 7F583  : Relative position given at F50B :
			to the right or to the left?
				00 : Right
				FF : Left
	    F5DB / 7F5EB  : How far from the other object (Vertical)
			Values depends on F643 :
				If F643 is 00, values goes from 00 to FF
				If F643 is FF, values goes from FF to 00
	    F643 / 7F653  : Relative position given at F5DB :
			up or down?
				00 : Down
				FF : Up

F4DC-F4F5 : Set $420,X based on relative position to Megaman (Make object face Megaman.)
F4F6-F50A : Set $528,X byte based on $420,X (Set sprite mirroring bit based on movement direction.)

7F51B-7F582 : Relative Coordinate Set Table A
7F583-7F5EA : Relative Coordinate Set Table B (Screen)
7F5EB-7F652 : Relative Coordinate Set Table C
7F653-7F6BA : Relative Coordinate Set Table D (Screen)

F6AB-F6BB : Invert Object's Horizontal Direction (Left<->Right) - Arguments: X = Object Slot
F6BC-F6D6 : Sound Init Array Write - Sound ID Init Routine (Called with Sound ID# in A)
  (F6BE for Sound Effects)

F6D7-F6E5 : Return Relative Y Coordinate to Megaman. [Return val: A = Relative Y Coordinate,
	    X = Design other object, Carry Flag is set if Mega Man is at under the object.]
F6E6-F6FC : Return Relative X Coordinate to Megaman. [Return val: A = Relative X Coordinate,
	    X = Design other object, Carry Flag is set if Mega Man is at right of object.]

	Variables not used :
	$10

F6FD-F70E : Set Mega Man position to be used by function it calls after setting values : F71E.
	[Arg: 00 = Mega Man's Y, 01 = Mega Man's X, 02 = Mega Man's X Screen]
	For the return value, see F71E
	(Uses F71E)

F70F-F71D : Set Object defined by Y position to be used by function following : F71E.
	[Arg: 00 = (Object defined by Y)'s Y, 01 = (Object defined by Y)'s X,
	02 = (Object defined by Y)'s X Screen]
	For the return value, see F71E
	NOTE : It doesn't call F71E, it follows, it's in the same function, but it's easier
	to see them as separate function, since F6FD use F71E to.
	(Uses F71E)

F71E-F775 : Prepare values for functions from position between two objects.
	    From them, one known, F7A6, so enemy go toward Mega Man or another
	    object (defined by the caller : F70F or F6FD) and then make circles over him.
	    [Result: 00 = Distance between the two (X or Y coordinate, depending which one
	      	     is smaller. If they are equal, it contains X distance)
		     01 : Distance between the two (X or Y coordinate, depending which one
	             is bigger. If they are equal, it contains X distance)
		     02 : Contain a pointer used in the function to read table F776
		     A   : It contains a value from F776 table. Seems to have a mean about
			   the distance between 2 object.
		     Y   : See down here. NOTE: It's used by the function and seems to not
			   be used by the callers. It's a pointer on a table, for a value
			   which is used by the calling function.]
	    (Uses table F776, read from it with Y)
	    (Used by F6FD and F70F)

	    HERE IS HOW Y IS BUILD :

		Y value (start from 00, and do steps in order) :
		- Plus 01 if Y distance > X distance
		- Plus 02 if (caller) at the right of (owner)
		- Plus 04 if Y coordinate of (owner) < those of (caller)

		* Multiply the numbers summed by 4

		- Plus 01 if bigger distance divided by 2 is smaller than the smallest distance
		- Plus 02 if bigger distance divided by 4 is smaller than the smallest distance


F776 : Table used by F71E. COntains a value which has meaning concerning the position
       between 2 objects. Indexed by the Y of F776.
       (Used by F71E)

F796 : Table : direction bits to choose from with a pointer (build with results of F71E)
       for enemy going on Mega Man and circling over him. The pointer is build
       from information about the position between two objects. From this information is
       the value F71E return in A (value read from F776).
       (Used by F7A6)
       (Also used by FD17)
       (Also used by Manta)

F7A6-F7D7 : Give information about the distance between Mega Man and the enemy...
	Appear to be a really useful function!
	Use by Wall Gun, enemies that make circle over Mega Man (like Lady Bug
	Copter), and maybe others... Will be really useful when we know more.
	Calls F6FD which load Mega Man's position datas, and then F71E
	to calculate values this function uses to make enemy go toward Mega Man and then
	circle over him.

	(Uses table F796)
	(Uses F6FD)

F7D8-F842 : Hit detection: MM - Object Walls
		Return Value : Carry is set if Mega Man is on an object. Else, it's clear.
			       $01 : contains ID of object hit.

		Important points :
			$F822 : It's where it comes when there is a collision with an object.

F843-F899 : ??

F89A-F8BC : ? Return relative X coordinate between Megaman and object Y? (Sub of F7D8)
	Relative X coordinate is returned in memory $10.

F8BD-F8F8 : I don't know what it does exactly, but has to do with calculating
	vertical distance with MM. This is this function which is used
	to calculate values which are used to put MM on/under object.  (Sub of F7D8)
F8F9 : ??
F92E : Subtract Y coordinate pixels from MM if in contact with wall object.
F93F : Add Y coordinate pixels to MM if in contact with wall object.
	Return value :
		Carry Set :
		Carry Clear

F95D-F9B3 : Hit detection : Megaman w/ Enemy Object.

	Variables it uses :

		Write Over :

			$00
			That's all!

	(for Mega Man's shape, it's already set in the function. The value is the same
	for everything, except sliding, which is checked by sprite ID (#$10 = sliding))

	[Return value: 01 in the Carry Flag if there is no collision]
	IMPORTANT NOTE : OBJECT NEED TO BE VISIBLE! (Bit 5 of Slot $0528,X)
			 ALSO, THIS DOESN'T CHECK IF THERE IS AN OBJECT IN SLOT X!

	F9B4-F9F3 / 7F9C4-7FA03 : Hit detection : Megaman w/ Enemy Object - Shape Height (Y) Data
				Value is in # of Pixels from center of Object.
				(For total value, multiply by 2)
	F9F4-FA33 / 7FA04-7FA43 : Hit detection : Megaman w/ Enemy Object - Shape Width (X) Data
				Value is in # of Pixels from center of Object.
				(For total value, multiply by 2)
	Which entry is used in these two tables are referenced by the Object's shape bits.
	These are bits 2-7 of the object's byte in the $408-$41F memory range.
	That makes the byte pointer to both tables above.

	NOTE : This function checks the difference between center of Mega Man and Enemy Object.
	It compares the distance with the ones in the tables.

FA34-FA81 /7FA44-7FA91 : Collition Detect : Weapons with Enemies
       [Arg: X = Enemy, Y = Weapon]
       [Return value: 01 in the Carry Flag if there is no collision]
       (Uses table FACE)
FA82 : Particle Hit Detection Check?
	(00, 01, 02, E6, E7 <- input args. Returns by Carry : set if there is no collision.)

FABE-FACD : Max Object Slot of weapons for each Weapon ID. Used with collition detection with enemies. (Table of FA34)
FACE / 7FADE : Shape Height and Width Table (For Weapons)
	For this weapons table, each Shapes are ordered in pairs of Object Height (Y) then Width (X).
	Value is in # of Pixels from center of Object.

	Pointers (to have it, take the Substance and Shape of the weapon, and multiply by 2)
		00 : Normal Shot, Drill Bomb
		04 : Medium Pharaoh Shot
		08 : Small Pharaoh Shot
		0A : Fully charged Pharaoh Shot

Note : For Enemy Shape Data, take their Substance and Shape value and make AND 3F.
Then you have the pointer for table FADC and FB1C
For more specific datas on Substance and Shape, such as which object used which, seek
Substance and Shape Explicits values

FADC : Shape Height Table - Enemies.
       Value is in # of Pixels from center of Object.
       (For total value, multiply by 2)
	FB0A : Gachappon's Entry
FB1C : Shape Width Table - Enemies.
       Value is in # of Pixels from center of Object.
       (For total value, multiply by 2)
	FB4A : Gachappon's Entry

FB5C-FB6B : Find Empty Enemy Object Slot (With X register, from $8 to $17) [Return vals: X = Obj slot]
FB6C-FB7B : Find Empty Enemy Object Slot (With Y register, from $8 to $17) [Return vals: Y = Obj slot, Carry = Result, Set if no empty obj slot could be found.]
FB7C-FB8B : Find Empty Object Slot (With Y register, from $5 to $17)

FB8C-FC13 / 7FB9C-7FC23 : Throw weapon directly on Mega Man. Sets the direction bits and speed,
	so it goes on Mega Man with the same speed, in different direction.
	[Arg: X = object to orient index]
	[Ret val.: 0C = Direction bits of the object, so it goes on Mega Man. You have to set it,
	after the call, the function doesn't do it. It sets the speed though.]
        (Uses F6E6)

FC14-FC39 : Divide routine [
	Arguments:
		$00 = Argument 1, $01 = Argument 2
	Return Values:
		$02 : Result of Argument 1 ($00) divided on Argument 2 ($01).
		$03 : Remainder of divide
	]

	If divide by 0, Result 1 ($02) returns $FF, Result 2 ($03) returns value of Argument 2.

FC3A-FC7A : 16-bit Divide Routine
	[Affects: $06, $07, $09 (Temp mem)
	Arguments:
		$00 : Argument 1 Low byte
		$01 : Argument 1 High byte
		$02 : Argument 2 Low byte
		$03 : Argument 2 High byte
	Return Values:
		$04 : 8-bit Remainder of divide?
		$05 : 8-bit Result (Argument 1 / Argument 2)
	]

FC7B-FC9D : Multiplication Routine - (Unused, not addressed from anywhere.)
	[
	Affects: $04 (temp)
	Arguments:
		$00, $01
	Return Values:
		$02 : 8-bit Result
		$03 : ?? Affected if result overflows byte value, but is not High byte of 16-bit result.
	]

FC9E-FCBE : Set disable flag in $100-$11F range for stage's enemy/item.

[Hard-Wired Misc]

Data:
FCBF-FCC6 : Bit OR / AND table
FCC7-FCCE : Bit OR / AND table (Inverted bits)

ASM:

FCCF-FCE2 : Remove Properties of Object in Slot indexed by Y Register.
		Those properties are, with Y index :
			$300, $450, $5A0, $5B8 and put #$FF in $438.

FCE3-FD04 : Stores Banks, Calls $C421, $DB3A and $FF1C.
	called while refilling Weapon Energy/Health.
	FCE7 : JSR point from Wily Saucer Sequence (Bank $39, $9167)
FD05-FD16 : Store Banks to stack, Call $DABB (Scroll Graphics Load Handler)

FD17-FD44 : Subroutine used by Whale enemy's missile to set movement speed. Used by other enemies?
	FD45-FD74 : Data.
		FD45 : Low byte of speeds
		FD5D : High byte of speeds

FD75-FD8D : Subtract Weapon Energy Routine

FD8E-FD9B / 7FD9E-7FDAB : Weapon Energy Depletion for Each Weapon ID

FD9C-FDCC : Init Boss Battle Music and set up other memory. - Called from Enemy ASM. Music played depends on stage.

FDCD-FDDD : Pre-Intro ASM Launcher - Changes bank and calls Pre-Intro ASM. Called from Startup ASM.
FDDE-FDE6 : Remove All Weapon/Gadget Objects (Removes Objects in Obj Slots 1-4.)

FDE7-FDFF : Unused random data.

[$FE00-$FFF9 Region]

ASM:
FE00-FEA4 : Boot-up asm from Reset Interrupt - Various Reseting / Initializing.
	Continues into FEA5.
FEA5-FEEC : Multi-Thread Handler Loop.
FEED-FEFC : Register Thread.
	Arguments:
	A = Thread Slot. (0-3)
	$93 = Start Address Low.
	$94 = Start Address High.
FEFD-FF04 : Remove Thread (?). A register is Thread Slot. Unused Routine.
FF05-FF0E : Remove Thread - ??
FF0F-FF14 : Return [$91] * 4 in X.
	JSR to FF11 : Return (A * 4) in X.
FF15-FF1B : Multi-frame Delay : # of Frames in X. (Calls FF1C multiple times.)
FF1C-FF36 : Thread Context Switch Call
	Stores Thread status and goes to multi-thread handler. (FEA5).
	After Vblank has occured, it returns back from the thread handler.
	Joypad Memory is automatically refreshed before it returns.
	This routine is called to do single-frame delay, among other things.

FF37-FF5B : Bankswitch Routine
	[Usage: Set $F5 (Bank# $8000-$9FFF) or/and $F6 (Bank# $A000-$BFFF), then call this routine.]

FF5C-FFAC : Sound Refresh - Call Sound Init / Play Routines.
	Called once every Vblank.

FFAD-FFB2 : Initial CHR Bank Setup from Reset.
FFB3-FFF9 : Unused random data.

[Interrupt Vectors]

FFFA-FFFB : NMI Vector
FFFC-FFFD : Reset Vector
FFFE-FFFF : IRQ Vector

Level Data
==========

A000-A3FF : 16x16 Tile Data
  A000-A0FF : Upper-Left 8x8 Tile
  A100-A1FF : Upper-Right 8x8 Tile
  A200-A2FF : Lower-Left 8x8 Tile
  A300-A3FF : Lower-Right 8x8 Tile

  Each 16x16 tile uses a byte in all 4 tables.

A400-A4FF : 16x16 Tile - Palette and Substance Data (Single byte for each entry.)
  MSB
  bit0-bit3 : Substance ID
  bit6-bit7 : 4-color BG Palette
  LSB

A500-A8FF : 32x32 Tile Data
  Unlike 16x16 tile data, each entry is organized in groups of 4 bytes.
    byte 1 : Upper-Left 16x16 Tile
    byte 2 : Upper-Right 16x16 Tile
    byte 3 : Lower-Left 16x16 Tile
    byte 4 : Lower-Right 16x16 Tile

A900-B0FF : Screen Preset Data (Space for 32 Screen Presets)

B100-B17F : Stage Sprite Objects - Screen of Location
B180-B1FF : Stage Sprite Objects - X Coordinate of Location
B200-B27F : Stage Sprite Objects - Y Coordinate of Location
B280-B2FF : Stage Sprite Objects - Enemy ID

B300-B32F : Stage Sprite Object Count for each Screen
		(Used for Mid-Points when setting enemy count back.)

B330-B4FF : Unused. (Random data)

B500-B52F : Screen Preset Order
	B520-B52F : Normally not used, but some levels are more than 32 screens long. (Pharaoh Man's stage.)
B530-B53F : Scroll Data
B540-B54F : Special Scroll Data (Groups of 4 bytes.)

B550-B55F : Scroll Index : Stage BG Palette Set
B560-B56F : Scroll Index : Scroll Graphics Load ID

B570 : Boss Door Wrap Up - Nametable VRAM Address of Door Updates - High
B571 : Boss Door Wrap Up - Nametable VRAM Address of Door Updates - Low
		(Note: This points to the bottom 16x16 Tile of the Door, the top left 8x8 tile
		of that one, to be exact.)
B572-B575 : Boss Door Wrap Up - Which 16x16 Tiles to draw in place of the boss door.
B576 : Boss Door Wrap Up - Attribute Table (Palette) Updates - 32x32 Tile of Door Updates (0 to $3F)
B577 : Boss Door Wrap Up - Attribute Table (Palette) Updates - 16x16 Tile of Door Updates (0 to 3)
		(This also points to the bottom 16x16 Tile of the door.)
B578-B57B : Boss Door Wrap Up - Attribute Table OR Data for each 16x16 Tile.

B57C-B587 : Boss Door Wrap Down Data. (Should be similiar to wrap-up data)

B590-B61B-> : Stage BG Palette Sets
	B61B is the maximum byte used in Megaman 4 for palette sets, but its safe to use
	data past that, until B6FF.

B61C-B6FF : Unused.


Tutorial for Sprite Banks
=========================
To explain it, let's take the sprite 10 from Sprite Bank 3 (Ring Man's Ring)

BEFORE ANIMATION

You must first add this value (Sprite ID : 10) to both ROM address
Animation - Address Table Low
Animation - Address Table High
of Sprite Bank 3, whiwh are 1FE10 (Low) and 1FF10 (High) to obtain the address of it's animaton
You find at 1FE20 (Low) D1 and at 1FF20 (High) B5 which makes B5D1.
This is the RAM address where is the Animation.
Since we are looking for it in the ROM, you must add it to 14010 if it's in Sprite Bank 3,
C010 if it's Sprite Bank 1, 10010 if it's Sprite Bank 2 and 64010 if it's Sprite Bank 4. Let's
call those the "Adjust Values".
Our pointer, in this case, is 1F5E1. We are now at the animation datas

ANIMATION

Byte 0 : The number of animation (00 being 1 animation... Also, if value is bigger or equal to
80, you'll have to add 100 to the Tile Usage pointers.
Byte 1 : The delay between animations.
Byte following : Tile Usage pointers, they are used to know where is the Tile Usage.

To find your Tile Usage, you need to add the Tile Usage Pointers to the following datas
Tile Usage - Address Table Low (1F810 for Sprite Bank 3)
Tile Usage - Address Table High (1FA10 for Sprite Bank 3)
and do the same process as done in the first step, with the same "Adjust Value".
Let's do it with Tile Usage pointer 26. With 82 as High and F4 as Low, when adding it to 14010,
you shall obtain 1C304. Let's go there.

TILE USAGE

Byte 0 : The number of tiles (00 being 1 tile)
Byte 1 : The Coordinate Pointer (for all the tiles, coordinate will be applied with the
same order as the tiles are given here).
Byte followings : By groups of two :
		First : The tile to load from the Pattern Table (PPU viewer with emulator
			FCEUXD)
		Second:	Byte composed of bits with signification.
			bit 7 	  : If set, make a Horizontal Flip of the Tile.
			bit 6 	  : If set, make a Vertical Flip of the Tile.
			bit 5 	  : If set, tile is behind background.
			bit 4 	  : Never seem to be use. If it has a use, it's unknown.
			bit 3 	  : Never seem to be use. If it has a use, it's unknown.
			bit 2 	  : Never seem to be use. If it has a use, it's unknown.
			bit 0 & 1 : Their value, as Hex, is used to know which palet to
				    use to color this tile (from 0 to 3). They defined
				    set of palets loaded in the RAM of the game.

COORDINATE

With the Coordinate Pointer of the Tile Usage (Byte 1), use those table
Coordinate Data - Address Table Low (1FC10 for Sprite Bank 3)
Coordinate Data - Address Table High (1FD10 for Sprite Bank 3)
to obtain 996E with our current example, and add it to the "Adjust Value" of Sprite Bank 3,
to obtain 1D97E.
There, the datas are this way, by group of 2 (2 Byte for each tile). Apply the coordinate
to the tiles with the same order they are shown.

Byte 0 : Y position from the center of object.
Byte 1 : X position from the center of object.
NOTE : Coordinates from FF to 80 are negative, starting with -1 as FF. 00 to 7F are positives.
Negative is left on X coordinates, and up on Y coordinates.

That's about it! Coordinates pointers may be used by more than one Tile Usage. Especially
paterns which are common, like squares. The only Tile Usage which are used for more than
one animation are the Empty ones.

Object ID List
==============

Total number of Object ID's is $D0. Megaman 4 does not support more.
"u" is noted for unused Id.

01 : Megaman.
02 : Buster Shots.
03 : Weapon Shots - After having been deflected off enemies.
04 : Rush Coil/Marine/Jet.
05 : Rain Flush
06 : Balloon Adaptor
07 : Dive Missile
08 : Ring Boomerang
09 : Drill Bomb
0A : Dust Crusher
0B : Wire Adaptor
0C : Pharaoh Shot (Shot)
0D : Pharaoh Shot (Being Charged)
0Eu: Unused.
0F : Skull Barrier
10 : Ladybug Copter (Enemy ID $00)
11 : Ladybug Copter - Dropped Propel.
12 : Hover (Enemy ID $01)
13 : Slinky (Enemy ID $02)
14 : Scorpion
15 : Scorpion - Controller/Generator (Enemy ID $03)
16 : Grasshopper (Enemy ID $04)
17u: Jet Bird - Unused.
18 : Jet Bird (Enemy ID $05)
19 : Jet Bird Children
1A : Wall Gun (Enemy ID $06/$07)
1B : Wall Gun's Bullet
1C : Lightbulb Guy (Enemy ID $10)
1D : Lightbulb Guy - Flare Capsule
1E : Lightbulb Guy - Flare
1F : Rat (Enemy ID $11)
20 : Ring Man Rainbow Bar A/2A (Enemy ID $8/$C)
21 : Ring Man Rainbow Bar B/2B (Enemy ID $9/$D)
22 : Ring Man Rainbow Bar C/2C (Enemy ID $A/$E)
23 : Ring Man Rainbow Bar D/2D (Enemy ID $B/$F)
24 : Hippo's nose (Enemy ID $18)
25 : Hippo's Missile
26 : Hippo - platform block (Enemy ID $1A)
27 : Handler when Wily battle finished in Wily Stage 3.
28 : Wall (Enemy ID $29/$2A/$2B)
29 : Handler after Cossack Stage 1 & 2 Boss defeated. / And Wily Stage 1 & 2 Boss defeated. (Changed to $29 from previous ID.)
2A : Energy Circling around Megaman after Boss defeated.
2B : Snailbot (Toad Man stage miniboss) (Enemy ID $1E)
2C : Snailbot's Bomb
2D : Snaibot - Defeat Handler
2E : Fragments of Defeated Boss.
2F : Bright Man Stage Platform - Red (Enemy ID $28)
30 : Ring Miniboss (Enemy ID $12)
31 : Ring Miniboss - Ring seperation handler
32 : Ring Miniboss - rings (seperated body)
33 : Fly (Enemy ID $13)
34 : Fly's Dropped Bullet
35 : Umbrella Metool (Enemy ID $14)
36 : Umbrella Metool - Umbrella Projectile
37 : Fireworks Guy (Enemy ID $15)
38 : Fireworks Guy - Fireworks Capsule
39 : Hover : Bullets shot
3A : Ring Miniboss - Defeat handler
3B : Drill Bomb - Explosion State (Set to $3B from $09.) (Also used with Cossack stage 1 boss)
3C : Explosion(s).. (Set to when Ring Miniboss is defeated). (Also when Snailbot is defeated)
3D : Spinner (Enemy ID $2D)
3E : Super ball machine (Enemy ID $3E/$3F)
3F : Super ball machine - Balls
40 : Falling Rock - controller (Enemy ID $30)
41 : Falling Rock - smaller pieces
42 : Eddie (walking) (Enemy ID $31)
43 : Eddie (not walking) (Enemy ID $32)
44 : Eddie - Item given by Eddie (Not $C1)
45 : Cossack stage 3 boss (Cockroach Twins) (Enemy ID $1C)
46 : Jumbig (Enemy ID $33)
47u: Unused. - ASM at $9F85 in bank $3A, already used by something else.
48 : Shield Attacker (Enemy ID $34)
49 : Cossack stage 3 boss - Handler - Initialize 2nd Cockroach Twin
4A : Cossack stage 3 boss - Handler - Cockroach twins defeated
4B : Hippo - Used when defeated
4C : Lightbulb Guy - After shot - Takes care of initializing auto palette fade down
4D : Wily Stage 4 Battle - Swirls, Enemy ID $1D (Enemy ID $1D is never used however)
4E : Totempole (Enemy ID $36)
4F : Totempole's Bullet
50 : Walking Metool (Enemy ID $3B)
51 : Metool's Bullets
52 : Whale miniboss (Enemy ID $38)
53 : Whale's Missile
54 : Whale's Mines
55u: Unused. - RTS at $ACFC in bank $3D.
56 : Jumping Metool (Enemy ID $3C)
57u: Unused. (Enemy ID $3D) - Bank $3D, $AD0C.
58u: Unused. (Enemy ID $3E) - Bank $3D, $AD0C.
59u: Unused. (Enemy ID $3F) - Bank $3D, $AD0C.
5Au: Unused. (Enemy ID $40) - Bank $3D, $AD0C.
5B : Drill Man's stage Switch (Enemy ID $41)
5C : Spinning Metool (Enemy ID $42)
5D : Cossack stage 3 platforms (Enemy ID $6A)
5E : Dust Man up/down ceiling handler
5F : M422A (Enemy ID $45)
60 : Block Platform (Enemy ID $80), Shuffled Block, General (Used as general Object ID at ending, credits, and during intro scenes.) (Sprite Bank $A/$B)
61 : Amoeba (Enemy ID $47)
62 : Skeleton Joe (Enemy ID $48)
63 : Skeleton Joe - Bone
64 : Saturn Bot (Enemy ID $49)
65 : Water Metool (Enemy ID $4A)
66 : Water Air Bubbles.
67 : Used with Wily Stage 1 Boss - ASM pointer refers to RTS ($8824) (Enemy ID $2C, $6D)
68u: Unused.
69 : Skullmet (Enemy ID $46/$4B)
6A : Skullmet's Bullet
6B : Dive Man's stage - Wavering water effect 1 (Enemy ID $16)
6C : Dive Man's stage - Wavering water effect 2 (Enemy ID $17)
6D : Helipon (Enemy ID $4C)
6E : Helipon's Bullet
6F : Water Splash
70 : Piranha (Enemy ID $4D)
71 : Skull Man
72 : Skull Man's Bullets
73 : Assembling Block (Enemy ID $4F)
74 : Assembling Block - 16x16 pixel blocks.
75 : Ring Man
76 : Ring Man's Ring Boomerangs
77 : Explosion? (Handler after Robot Master defeated)
78 : Wall Wheel (Enemy ID $51/$52)
79 : Dust Man
7A : Dust Man's Dust Crusher (Big)
7B : Dust Man's Dust Crusher (Smal)
7C : Dive Man
7D : Dive Man's Dive Missile
7E : Drill Man
7F : Drill Man's Drill Bomb
80 : General - (Object ASM $8823). Known to be used to make the small explosion when an enemy dies, only when enemy dies with the "Kill Enemy Procedure"
81 : Skull Man's Skull Barrier / General Id (Robot Master Credits - Robot Master sprites) (Sprite Bank $E/$F)
82 : Used in Drill Man Boss Battle.
83 : Multiple Explosions
84 : Pharaoh Man
85 : Pharaoh Man - Pharaoh Shot
86 : Pharaoh Man - Normal shots
87 : Cossack stage 1 boss (Enemy ID $57)
88 : Cossack stage 1 boss - rod (Enemy ID $58)
89 : Cossack stage 1 boss - eyes (Enemy ID $59)
8A : Cossack stage 1 boss - bullet
8B : Bright Man
8C : Bright Man's Bullets
8D : Toad Man
8E : Battonton (Enemy ID $5C)
8F : Cossack stage 1 boss - debris
90 : Triggered after Whale miniboss. (Bank: 3D, Addr: A5D3)
91 : Mantan (Enemy ID $5D)
92 : Cossack battle - Cossack sprite (Enemy ID $5E)
93 : Cossack battle - cranes (Enemy ID $5F)
94 : ??? (Only movement) (Bank: 3D, Addr: BA8B)
95 : Cossack stage 2 boss - eye (Enemy ID $61)
96 : Cossack stage 2 boss - platforms (Enemy ID $62)
97 : ??? (Only movement) (Bank: 3D, Addr: BA8B)
98 : Falling Rock - Rock falling down
99 : Cossack stage 2 boss - walls (Enemy ID's $63-$66)
9A : Mummy Mauler (Enemy ID $67)
9B : Mummy Mauler - Thrown Head
9C : Worm (Enemy ID $68)
9D : Pickups dropped by enemies / explosion after Enemy is killed.
9E : Cossack Stage 3 Boss (Enemy ID $69)
9F : Cossack Stage 3 Boss - Heavy Shot
A0 : Cossack Stage 3 Boss - Bullets
A1 : Mono-Roader (Enemy ID $6B)
A2 : Cossack Stage 3 Boss (Cockroach Twin #2)
A3 : Cossack Defeated Scene - Kalinka
A4 : Cossack Defeated Scene - Protoman
A5 : Cossack Defeated Scene - Dr.Wily
A6 : Wily Stage 1 Boss - eyes (Enemy ID $6C)
A7 : Gachappon (Enemy ID $6E)
A8 : Gachappon's Fast Bullets
A9 : Gachappon's Bomb
AA : Wily Stage 1 Boss - Metools.
AB : Wily Stage 2 Boss - Controller
AC : Wily Stage 2 Boss - Boss Substance (Enemy ID $1B)
AD : Wily Stage 2 Boss - Ball
AE : Wily Stage 2 Boss - Flame shot
AF : Wily Stage 2 Boss - Platforms
B0 : Pakatto 24 (Enemy ID $72)
B1 : Pakatto 24's Bullets
B2 : Upndown
B3 : Warp (Enemy ID $74)
B4 : Upndown - Controller (Enemy ID $73)
B5 : Spike Block (Enemy ID $75 and $76)
B6 : Water Mine (Enemy ID $77)
B7 : Spark Spine (Enemy ID $78)
B8 : Robot Master Boss Controller (Enemy ID $79)
B9 : Skull Dropper (Enemy ID $4E)
BA : Moving Skull (Generated by Skull Dropper)
BB : Wily Stage 3 Battle (Enemy ID $50) - Points to 8824.
BC : Wily Stage 3 Battle (Enemy ID $53)
BD : Spike Box from Right - Controller (Enemy ID $54)
BE : Spike Box
BF : Wily Stage 3 Battle - Shots
C0 : Wily Stage 3 Battle - Second form - Something!
C1 : General pickup controller (E-Tank, Health and Weapon Energy Capsules) (Note: Not items dropped by enemies)
C2 : Balloon Item and Wire Item Capsules
C3 : Wily stage 1 Shuffled blocks (Enemy ID $35)
C4 : Wily Stage 4 Battle
C5 : Wily Stage 4 Battle - Charged Shot
C6 : Big Energy Capsule dropped by robot masters in rematch battles.
C7 : Ladder Press Right (Enemy ID $84)
C8 : Fireworks Guy - Object placed when shot, splits into fireworks and smal explosion.
C9 : Bright Man Stage Platform - Green (Enemy ID $82)
CA : Ladder Press Left (Enemy ID $81)
CB : Wily Stage 4 - Wily Sprite
CC : Drill Man Boss Battle - Clouds when Drill Man drills into/out of ground.
CD : Snailbot (Toad Man stage miniboss) - top (Enemy ID $1F)
CE : Spike Box from Left - Controller (Enemy ID $85)
CF : Dive Man stage floating spikes

Sprite ID List
==============

An "u" after the ID means that the listed Sprite ID is unused for that bank.
"?" means im not sure if its really unused or not.

Sprite Bank 1 (MMC3 Banks $A/$B) Sprite ID's:
---------------------------------------------

01 : Intro : Fourth Screen (MM on train) - Face 1 (Sad mouth)
02 : Intro : Fourth Screen (MM on train) - Face 2 (Normal mouth)
03 : Intro : Fourth Screen (MM on train) - Face 3 (Determined face)
04 : Intro : Fourth Screen (MM on train) - Face 4 (Putting helmet)
05 : Intro : Fourth Screen (MM on train) - Body 1 (Standing)
06 : Intro : Fourth Screen (MM on train) - Body 2 (Lifting fist)
07 : Intro : Second Screen (MM in Machine) - Body (Pelvis region)
08 : Intro : Second Screen (MM in Machine) - Face 2 (Pain animation)
09 : Intro : Third Screen (MM waking up) - Face 2 (Opening eyes)
0A : Intro : First Screen (City) - Explosion 1
0B : Intro : First Screen (City) - Explosion 2
0C : Intro : First Screen (City) - Explosion 3
0D : Intro : Fourth Screen (MM on train) - Tunnel lights
0E : Wheeled Skull (front)
0F : Wheeled Skull (moving)
10 : Skull Dropper
1B : ???
1C : Spike Box
1D : ???
33 : Intro : Second Screen (MM in Machine) - Face 1 (Normal)
34 : Intro : Third Screen (MM waking up) - Face 1 (Eyes closed)
35 : Intro : Fourth Screen (MM on train) - Face 5 (Helmet on)
36 : Intro : Fourth Screen (MM on train) - Body 3 (Fist raised)
37 : Intro : Third Screen (MM waking up) - Face 3 (Eyes opened)
38 : Intro : Second Screen (MM in Machine) - Face 3 (Eyes closed)



39 : First of unused pointers

Sprite Bank 2 (MMC3 Banks $C/$D) Sprite ID's:
---------------------------------------------

01 : MM - Standing
02 : MM - Aiming
03 : MM - Unleashing object
04 : MM - Walking
05 : MM - Aiming while walking
06 : MM - Unleashing object (looks same as 03, use unknown)
07 : MM - Jumping
08 : MM - Aiming while jumping
09 : MM - Unleashing object while jumping
0A : MM - Climing ladder
0B : MM - Aiming while climbing ladder
0C : MM - Unleashing object while climbing ladder
0D : MM - Step forward
0E : MM - Aiming (same as 02, use unknown)
0F : MM - Unleashing object (same as 03, use unknown)
10 : MM - Sliding
11 : MM - Getting hit (with explosion)
12 : "Clouds" when MM gets hit.
13 : MM - Warp animation
14 : MM - Reaching top of ladder
15 : MM - Aiming while climbing ladder (same as 0B, used if shooting when "reaching top of ladder")
16 : MM - Unleashing object while climbing ladder (same as 0C, used if shooting when "reaching top of ladder")
17 : Slide dust cloud
18 : Normal Buster Shot
19u: Big Explosion
1Au: Big Health Capsule
1Bu: Smal Health Capsule
1Cu: Big Weapon Capsule
1Du: Smal Weapon Capsule
1Eu: E-Tank
1Fu: Extra Life
20 : Full Charged Shot - Release Form
21 : Smal Charged Shot
22 : Full Charged Shot - Deflected off enemy
23 : Full Charged Shot
24 : Rush Jet
25 : Rush Coil
26 : Rush Marine (Not in operation)
27 : Rush Marine (Combining with Megaman)
28u: Rush Marine (Without waves behind propel - unused.)
29 : Rush Marine (In operation)
2A : Rush Marine (Aiming buster)
2B : Rush Marine (Getting hit)
2Du: Water splash - same data as 2E.
2E : Water splash
32 : MM - Warp animation (same as 13, use unknown)
33 : "Ready"
35 : Medium Explosion
36 : Rain Flush capsule
37 : Rain Flush capsule B
3E : Balloon Item
3F : Balloon Item (Megaman On Top)
40-44 : Dive Missile
  40 : Up
  41 : Up-Left/Right
  42 : Left/Right
  43 : Down-Left/Right
  44 : Down
45 : Ring Boomerang
46 : Drill Bomb
47 : Pharaoh Shot A (small)
48 : Pharaoh Shot B (half charged)
49 : Pharaoh Shot C (charged)
4A : Dust Crusher
4B : Dush Crusher, small piece
4C : Dush Crusher, small piece
4D : Dush Crusher, small piece
4E : Dush Crusher, small piece
4F : Charging Pharaoh Shot
50 : Skull Barrier
51 : Wire Item Capsule
52 : Balloon Item Capsule
53-60u : ? Has its own data.
64-6Bu : Same data as $6C.
6E : Cossack Battle - Cossack Catcher "cranes"
71 : Dr.Wily (After Cossack battle)
72?: Dr.Wily - Talking, pointing finger (unused?)
74 : Kalinka
75?: Kalinka - Talking (unused)
76 : Dr. Cossack (After battle)
77?: Dr. Cossack - Talking (unused)
78 : Warping (Dr.Wily and Protoman after Cossack battle)
79 : Protoman
7A : Cossack Sprite (Battling Megaman)
83 : Cossack Battle - Cossack Catcher lamps.
89 : Wily's Saucer flying into distance
8A : Wily's Saucer flying
8B : Wily's Saucer - Opening Up (Top)
8C : Wily'S Saucer - Opening Up (Bottom)

AA : MAY BE THE FIRST OF UNUSED POINTERS

B0-FFu:  Unused, has no pointers.

Sprite Bank 3 (MMC3 Banks $E/$F) Sprite ID's:
---------------------------------------------
Sprite ID range: 00-6F

01-06 : Skull Man Sprites
  01 : Skull Man's Skull Barrier
  02 : Skull Man standing
  03 : Skull Man Walking
  04 : Skull Man creating Skull Barrier
  05 : Skull Man Shooting
  06 : Skull Man Jumping
07 : Mothraya Eyes
08 : Bullet - Used with Skull Man and Bright Man and other bosses.
09-11 : Ring Man Sprites  (Except 0E)
  09 : Ring Man Standing
  0A : Ring Man Walking
  0B : Ring Man Walking, Throwing Ring
  0C : Ring Man Jumping/Falling
  0D : Ring Man Throwing Ring in Air
  0F : Ring Man's sparkling helmet
  10 : Ring Man's Ring
  11 : Ring Throwing
0E : Mothraya : The light flashing on his red button
12-1C : Dust Man Sprites (Except 16)
  12 : Standing
  13 : Preparing Dust Crusher
  14 : Jumping Up
  15 : Preparing for sucking attack
  17 : Dust Crusher (Composed)
  18 : Dust Crusher (Smal piece)
  19 : Dust Crusher (Smal piece 2)
  1A : Dust Crusher (Smal piece 3)
  1B : Dust Crusher (Smal piece 4)
  1C : Doing sucking attack
16 : Mothraya (Cossack Stage 1 Boss) Rod
1D-28 (excluded 25 & 27) : Dive Man Sprites
  1D : Shooting Dive Missile
  1E : Propelling through - Preparing
  1F : Dive missile Left/Right
  20 : Dive missile Up
  21 : Dive missile Down
  22 : Dive missile Down Left/Right
  23 : Dive missile Up Left/Right
  24 : Standing.
  25 : Unused. Points at same data of 26.
  26 : Propelling through
  27 : Unused : against Mothraya, it's a sprite for fire from his back. However, he doesn't use it.
  28 : Tilting forward
29-33 (excluded 32) : Drill Man Sprites
  29 : Standing
  2A : Standing, facing screen
  2B : Drill into ground - Dust Cloud
  2C : Standing, facing screen - Rotating drills
  2D : Fast Jumping up
  2E : Drilling into ground
  2F : Jumping
  30 : Running
  31 : Shooting
  33 : Drill Man's Drill Bomb.
32 : Bullet shot by Mothraya and second Cockroach Twin.
34-35 & 37 & 38 : Bright Man Sprites
  34 : Standing
  35 : Jumping
  37 : Doing Flash
  38 : Aiming
36 : Rush Animation sprite in Weapon Get
39-40 : Pharaoh Man Sprites
  39 : Standing
  3A : Charging Pharaoh Shot
  3B : Jumping (facing Left)
  3C : Jumping, throwing smal shot (facing Left)
  3D : Jumping (facing Right)
  3E : Jumping, throwing smal shot (facing Right)
  3F : Pharaoh Shot
  40 : Smal Pharaoh Shot
41-43 : Toad Man Sprites
  41 : Toad Man Standing
  42 : Toad Man Jumping
  43 : Toad Man Rain Dance

44 : Boss Demo - Bright Man
45 : Boss Demo - Toad Man
46 : Boss Demo - Drill Man
47 : Boss Demo - Pharaoh Man
48 : Boss Demo - Ring Man
49 : Boss Demo - Dust Man
4A : Boss Demo - Dive Man
4B : Boss Demo - Skull Man

4C : Mothraya - Debris 1 when breaking floor
4D : Mothraya - Debris 2 when breaking floor
4E : Mothraya - Debris 3 when breaking floor
4F : Mothraya - Debris 4 when breaking floor

50-5F : Cossack Stage 3 boss (Cockroach twins) sprites
  50 : Walking (bottom wall)
  51 : Wall turn - bottom wall to left wall
  52 : Walking (left wall)
  53 : Wall turn - left wall to top wall
  54 : Walking (top wall)
  55 : Wall turn - top wall to right wall
  56 : Walking (right wall)
  57 : Wall turn - right wall to bottom wall
  58 : Aiming (at bottom wall)
  59 : Aiming/Ducking (at bottom wall)
  5A : Aiming (at left wall)
  5B : Aiming/Ducking (at left wall)
  5C : Aiming (at top wall)
  5D : Aiming/Ducking (at top wall)
  5E : Aiming (at right wall)
  5F : Aiming/Ducking (at right wall)

60 : Gachappon
61 : Gachappon (Launching ball from top)
62 : Gachappon (Shooting bullet)
63 : Gachappon's Ball
64 : Mantan (Wide)
65 : Mantan (Narrow)
66 : Mantan (Smal)
67 : Mono-Roader (Normal)
68 : Mono-Roader (Rotating)
69 : Battonton (Hiding)
6A : Battonton (Starting to move)
6B : Battonton (Flying)
6C : Battonton (Going back to hiding)
6D : Sinking Platform.
6E : Toad Man Sprite (Use unknown)


70 : First of Unused Pointers

Sprite Bank 4 (MMC3 Banks $36/$37) Sprite ID's:
-----------------------------------------------

Sprite ID's / Animation Address Table Index:
01 : Ladybug Copter (Flying)
02 : Ladybug Copter (Circling)
03 : Ladybug Copter (Circling - slower)
04 : Ladybug Copter (Propel)
05 : Hover (MM not on)
06 : Hover (MM on)
07 : Hover (Air clouds)
08 : Hover (Same as 06?)
09 : Spinner (Onto ceiling)
0A : Spinner (Ready to spin)
0B : Spinner (Spinning)
0C : Hippo (Nose)
0D : Hippo (Ears)
0Eu: Unused 1 (Smal sprite) (Correction - Might be Hippo's Missile)
0Fu: Unused 2 (Some 16x16 animated sprite) (Correction - Might be Hippo's Missile)
11u: Unused 3 (Some 16x16 animated sprite) (Correction - Might be Hippo's Missile)
12u: Unused 4 (Smal sprite) (Correction - Might be Hippo's Missile)
13 : Slinky (One block down)
14 : Scorpion (Walking)
15 : Scorpion (Digging down into ground)
16u: Unused ID in this bank, Same data as $17.
18 : General Bullet?
19 : Explosion
1A : Big Health Capsule
1B : Smal Health Capsule
1C : Big Weapon Capsule
1D : Smal Weapon Capsule
1E : Extra Life
1F : E Tank
20u: Unused ID in this bank, Same data as $21.
21 : Small Wall
22u: Unused 5 (Could be Enemy ID $2A's sprite.. or a copy of it.)
23u: Unused 6 (Could be Enemy ID $2B's sprite.. or a copy of it.)
24u: Unused 7 (Some animated block.. uses enemy sprite tiles.)
25u: Unused 8 (Some small un-animated sprite..)
26u: Unused 9 (Unused sprite: Rolling ball-something!)
27u: Unused 10 (Unused enemy sprite: Snake!)
28u: Unused 11 (Some animated block.. also uses enemy sprite tiles.)
29 : Rainbow Bar
2A : Rainbow Bar (2nd Variant)
2B : Fireworks Guy (Walking)
2C : Fireworks Guy (Jumping)
2Du: Unused ID in this bank, Same data as $2E.
2F : Jet Bird
30 : Jet Bird (Same as 2F?)
31 : Jet Bird Child (Forward)
32 : Jet Bird Child (Down)
33 : Jet Bird Child (Forward-Down)
34?: Unused? 12 - Jet Bird Child (Up)
35?: Unused? 13 - Jet Bird Child (Forward-Up)
36 : Snailbot's Eyes
37 : Snailbot - "Thing" on the back.
38 : Snailbot - Launch opening on top.
39?: Unused 14? (Snailbot's Bomb)
3A : Wall Gun - Direction 1
3B : Wall Gun - Direction 1 (Aiming)
3C : Wall Gun - Direction 2
3D : Wall Gun - Direction 2 (Aiming)
3E : Wall Gun - Direction 3
3F : Wall Gun - Direction 3 (Aiming)
40 : Wall Gun - Direction 4
41 : Wall Gun - Direction 4 (Aiming)
42 : Wall Gun - Direction 5
43 : Wall Gun - Direction 5 (Aiming)
44 : Wall Gun - Direction 6
45 : Wall Gun - Direction 6 (Aiming)
46 : Wall Gun - Direction 7
47 : Wall Gun - Direction 7 (Aiming)
48 : Sand Clounds when Scorpion digs into ground?
49 : Fireworks Bot - Launched Fireworks
4A : Fireworks Bot - Exploding Fireworks
4B : Rainbow Bar?
4C : Lightbulb Bot
4D : Lightbulb Bot (Launching flares?)
4E : Lightbulb Bot (?)
4F : Lightbulb Bot - Flare Capsule
50 : Lightbulb Bot - Flare
51 : Rat
52 : Ring Guy
53 : Ring Guy (Eyes only)
54 : Ring Guy (Seperating into rings)
55 : Ring Guy (Ring)
56 : Fly
57 : Fly's Bullet
58 : Eddie (Standing)
59 : Eddie (Throwing item)
5A : Eddie (Walking)
5B : Hippo (Warp Animation)?
5C : Umbrella Metool/Bot (Walking)
5D : Umbrella Metool/Bot (Folding umbrella)
5E?: Unused 21? (Umbrella Metool/Bot - walking forward with umbrella)
5F : Umbrella Metool/Bot (Walking forward without umbrella)
60 : Umbrella Metool/Bot (Launching umbrella)
61 : Umbrella Metool/Bot - Umbrella
62 : Explosion
63 : Grasshopper (Hopping)
64 : Super Ball Machine
65 : Super Ball Machine (Ball - Vertically stretched)
66 : Super Ball Machine (Ball - Horizontally stretched)
67 : Falling Boulder (Compact)
68 : Falling Boulder (Smal piece 1)
69 : Falling Boulder (Smal piece 2)
6A : Falling Boulder (Smal piece 3)
6B : Falling Boulder (Smal piece 4)
6E-70u: Unused 22 (same data)  (Might be a platform)
71 : Drill Man Stage Switch
72 : Skullmet
73 : Skullmet (Shooting bullet)
74 : Shield Attacker (seems unused, same as 76)
75 : Shield Attacker (seems unused, same as 76)
76 : Shield Attacker
77 : Shield Attacker (Turning)
78u: Unused 23 (Unused enemy sprite: Wheel gun!)
7E : Air Bubble
90 : Amoeba standing
91 : Amoeba going down
92 : Amoeba "walking"
93 : Amoeba going up
97 : Saturn Bot

A0u: Unused 25 (Unused enemy sprite: Drop)
A1u: Unused 26 (Unused enemy sprite: Drop - falling drop)
AAu: Unused 27 (Some animated 32x32 pixel block using mirrored sprites)

AD : First of unused pointers

B0-FFu: Unused, has no pointers.

More Sprite ID's: (Undetermined Sprite Bank)
--------------------------------------------

49 : Fireworks A
4A : Fireworks B
62 : Explosion (drill bomb)
DF? : Inviliciblity blink

Unused IDs..
============

Definately Unused Enemy ID's: $21, $22, $23, $24, $25, (more)

Other Unused Enemy ID's:
	2A : Wall (Medium)
	2B : Wall (Large)
	2C : Loads Object ID $67, Sprite ID $A0. (Sprite Bank 2)
	3D : Switch (Unused Variant)
	3E : Loads Unused Object ID $58, Sprite ID $71 (Sprite Bank 4)
	3F :
	40 :
	88-8F : Unused entries. 8F is the last entry in all the tables concerning Enemy ID.

Unused Object ID's:
	0E
	17 : Unused ASM - Generates Jet Bird (Object ID $18)
	47 : ASM at $9F85 in bank $3A, already used by something else. - Generates explosions w/ sound.
	55 : RTS at $ACFC in bank $3D.
	57 : ASM at $AD0C in bank $3D, already used by Drill Man Stage Switch. (Object ID $5B.)
	58 : ASM at $AD0C in bank $3D, already used by Drill Man Stage Switch. (Object ID $5B.)
	59 : ASM at $AD0C in bank $3D, already used by Drill Man Stage Switch. (Object ID $5B.)
	5A : ASM at $AD0C in bank $3D, already used by Drill Man Stage Switch. (Object ID $5B.)
	68.

Weapon Shape ID's
=================

00 : 00x00 : Normal Buster, Small Charged Buster, Drill Bomb, Ring Boomerang, Dust Crusher, Dive Missile, Wire
01 : 02x06 : Fully Charged Buster
02 : 06x06 : Medium Pharaoh Shot
03 : 0Ex0E : Drill Bomb Explosion
04 : 02x02 : Small Pharaoh Shot
05 : 0Ax0A : Big Pharaoh Shot
06 : 16x16 : Skull Barrier

NOTE : To read the datas from FACE, multiply the pointers by two (since one pointer covers two
datas)

Object Shape ID's - bits 2-7 of 408-41F (Occupying area, hit detection between sprites).
========================================================================================

( Height x Width )
$FADC x $FB1C
00 : 0A-0A - 16*16 Square - Ladybug Copter, Battonton, Big Energy Capsule.
01 : 09-0A - Ring Man Rainbow bars (active)
02 : 0A-12 - Ring Man Rainbow bars (inactive) 1, Ring Guy Sub-object
03 : 0A-1A - Ring Man Rainbow bars (inactive) 2
04 : 0A-22 - Ring Man Rainbow bars (inactive) 3
05 : 0A-2A - Ring Man Rainbow bars (inactive) 4
06 : 0A-32 - Ring Man Rainbow bars (inactive) 5
07 : 0A-3A - Ring Man Rainbow bars (inactive) 6
08 : 0A-42
09 : 0A-4A
0A : 06-1A
0B : 08-12
0C : 0A-1A
0D : 0E-0E - Mono-Roader, Ring Guy (Piece)
0E : 06-06 - Hippo's Missile
0F : 05-05 - Ladybug Copter - Dropped Propel, Bullets.
10 : 0E-12 - Wall Gun
11 : 0E-0A - Helipon
12 : 0A-06
13 : 1A-12 - Jumbig, Ring Guy
14 : 12-12 - Drill Man's Drill Bomb Explosion
15 : 12-0A
16 : 1A-0A
17 : 22-0A
18 : 22-32 - Hippo
19 : 2A-32
1A : 06-0A
1B : 0C-0E
1C : 10-05
1D : 04-0E
1E : 0B-0E
1F : 32-12
20 : 07-0A - Metools (Covered)
21 : 04-0A
22 : 0E-1A
23 : 1A-0C-Bright Man?
24 : 12-0C
25 : 42-06
26 : 12-32
27 : 12-06
28 : 0E-06
29 : 2A-0A
2A : 0A-42
2B : 05-0E
2C : 22-22
2D : 16-2A
2E : 22-16
2F : 32-32
30 : 32-22
31 : 0A-16
32 : 12-16
33 : 7A-12 -
34 : 0A-08
35 : 82-F2
36 : 0D-0B - Drill Man
37 : 1A-1A
38 : 0C-0A
39 : 0A-0C
3A : 02-02 (unused)
3B : 02-02 (unused)
3C : 02-02 (unused)
3D : 02-02 (unused)
3E : 02-02 (unused)
3F : 02-02 (unused)

(Went through Drill Man/ on Ring Man..)

Wall hit detection ID - Vertical
================================
Object - Vertical Wall Detection ID (For D2FC/F0F8)
===================================================

Pairs: [Down]/[Up]

Note 1 : Down/Up, meaning if the movement of the object is going down, or up.
Different numbers are used for both case.

00/01 : Megaman (Normal)
	D71E/D722
02 : Megaman - Check if in Water. Used in function $F3C1 (bank $3E). After the check with $1A/1B, Rush Marine
call $D2FC with this pointer.
	D727
03 : Megaman - Slide - Check open space above MM
	D72A
04 : Megaman - Slide - Check open space below MM
	D72F
06 : Worm (Falling Down), Spinner (On Ground)
08/09 : Skull Man (Jumping), Fireworks Bot, Mono-Roader, Wheel Skull
0A/0B : Some Robot Masters (Jumping), Umbrella Bot Falling, Grasshopper Jump
	Robot Masters : Dive Man, Pharaoh Man, Toad Man
0C/0D : Dust Man (Jumping), Rat's Jump, Falling Boulder (Big)
0E : Eddie, Spark Spine, Item dropped by Eddie (Down), Spinner
10 : Megaman - Toad Man Stage - Check for hit with Block types Glide Right/Left, Special
11/12 : Snail Bot's Bomb
13 : Bright Man Jump, Hover
14 : Small (8x8) Item (Downwards gravity)
15 : Rush Warp Down, Falling Boulder (small pieces)
16/17 : Super Ball Machine's Ball
18/19 : Rush Jet, a pointer checking collision when moving.
	18 : Worm (When on ground)
1A/1B : Rush Marine
1C/1D : Totempole
1D/1E : Metool
1F/20 : M442A (Down/Up)
21/22 : Amoeba
23 : Wire, Water Bubbles (Up)
26/27 : Water Metool
29 : Helipon (Down Check)
2A : Wall Wheel (Down check)
2B : Wall Wheel (Up check)
2C : Unused?
2D : Big (16x16) Item
32/33 : Jumbig
38 : Megaman - Another check if in Water? (Used to determine when to generate bubbles.)
39 : Megaman - Slide Stop - Check open space below MM, but at #$10 instead of #$0A like pointer
	$04. It's used when stop sliding. Maybe because of moving floors?
	D800
3A : Battonton - Upwards wall check
3B-3F : Unused.

Wall hit detection ID - Horizontal (For D428/F3ED)
==================================================

Pairs: [Right]/[Left]

Note 1 : Right/Left, meaning if the movement of the object is going right or left.
Different numbers are used for both case.
Exemple :
	00 is Mega Man (Normal) collision to the Right
	01 is Mega Man (Normal) collision to the Left

It checks at specific points if there is a collision. I will explain it with an example of pointer 00

02 08 F8 08 0B

02 : First digit always tell the number of digits there will be after second digits. Here 3 because it's #$02
08 : Second digit tells us, from center of object, how much to move the point to check. Here, +8 (#$08)

Here, those are all excedent digits, for which collisions are checked. The number of those is said by the first digit.
Those are all Y values moving from the point we are, to know where to check for collision.
I will go on with the example.

Note : If going Up, for #$FC, Y position will be AND #$04... so knowing this you can find the rest

F8 : Go up from where you are of -8 (#$F8) and check at this point for collision.

IMPORTANT NOTE! FOR ALL THE FOLLOWING DIGITS, WE ALWAYS MOVE FROM THE LAST POSITION

08 : Go down from where you are (-8) of 8. So check at 0 vertical position

0B : Go down from where you are (0) of 0B : So check vertical position at B.

That's all!



00/01 : Megaman (Normal)
	D888/D88D
04/05 : Mega Man (Slide)
	D897/D89B
06/07 : Mega Man (To Start to Slide)
	D89F/D8A2
0C/0D : Dive Man
	D74D/D752
0E/0F : Drill Bomb, Worm (Small)
	D8BF/D8C3
14/15 :  Rat, Flying Shield, Dust Man, Skull Man, Fireworks Bot, Scorpions, Hover, Mono-Roader
18/19 : Umbrella Bot Walking, Spark Spine, Item dropped by Eddie
1A/1B : Snail Bot's Bomb
1C/1D : Piranha, Spinner
20/21 : Super Ball Machine's Ball
22/23 : Eddie
24/25 : Rush Jet, Worm (Medium)
26/27 : Rush Marine
2A/2B : Metool
2E/2F : Water Metool
30/31 : Wall Wheels
32/33 : Toad Man, Pharaoh Man
34/35 : Bright Man
36/37 : Worm (Large)
3C/3D : Jumbig
3E : Megaman - ??? (Normal)	I know it is set here, and not called in stage #$04...
				has to do with Ring man rainbow bars?
	D998
3F : Megaman - ??? (Slide)
	D99C

Toad|Dust|Skull|Dive|Bright|Pharaoh

Object Slot Usage
=================

00: Megaman.
01-04: Megaman's Weapons.
	04 : Rush Coil or Wire Adaptor Stuff
05: Water when MM walks. (In Toad Man's stage.)
	"Shock" sprite when MM is hit by enemy
	Slide dust cloud.
	Water Splash.
	Might be used at explosions (When MM dies, and other cases).
06: Megaman's Air Bubbles (If Megaman is in Water.)
	Might be used at explosions (When MM dies, and other cases).
07: Might be used at explosions (When MM dies, and other cases).
08-17 : Enemies, Items, Explosions, etc.

Stage Bank / Scene Bank (Contents of $22)
=========================================

00: Bright Man
01: Toad Man
02: Drill Man
03: Pharaoh Man
04: Ring Man
05: Dust Man
06: Dive Man
07: Skull Man
08: Cossack Stage 1
09: Cossack Stage 2
0A: Cossack Stage 3
0B: Cossack Stage 4
0C: Wily Stage 1
0D: Wily Stage 2
0E: Wily Stage 3
0F: Wily Stage 4

Scanline Effect ID's (Contents of $F0)
======================================
00: No effect
01: Hippo
02: Whale
03: Mothraya
04: Dust Man Ceiling
05: Dive Man Waves
06: Dr. Cossack Battle
07: Dr. Cossack Stage 2 Boss
08: Dr. Cossack Battle End Scene
09: Giant Metool Battle and Wily Stage 3 Battle
0A: Train Ride Intro and Ending Scene
0B:

Weapon ID's (Refers to what is loaded into Memory $A0)
======================================================

00: Mega Buster
01: Rush Coil
02: Rush Jet
03: Rush Marine
04: Rain Flush
05: Wire Adaptor
06: Balloon Adaptor
07: Dive Missile
08: Ring Boomerang
09: Drill Bomb
0A: Dust Crusher
0B: Pharaoh Shot
0C: Flash Stopper
0D: Skull Barrier

Sprite Tile Usage
=================

Enemy sprites:

C0-CF : Ladybug Copter (Enemy ID $00)
C0-CF : Hover (Enemy ID $01)
A0-BF : Slinky (Enemy ID $02)
A0-BF & D2-D6 : Desert Scorpion (Enemy ID $03)
E0-FF : Grashopper (Enemy ID $04)
DC-EF : Rocket Bird (Enemy ID $05)
E0-FF : Gun (Enemy ID $06/$07)
A0-BA : Lightbulb Guy (Enemy ID $10)
A0-BF : Sewer Rat (Enemy ID $11)
E0-EF : Fly (Enemy ID $13)
A0-DB : Umbrella Guard (Enemy ID $14)
C0-DF : Fireworks Guy (Enemy ID $15)
E0-EF : Bright Man Platforms (Enemy ID $28, $82)
EE-EF : Walls (Enemy ID $29/$2A/$2B)
C0-E6 : Blade Spinner (Enemy ID $2D)
A0-BF : Super Ball Machine (Enemy ID $2E/$2F)
B0-BF : Falling Boulder (Enemy ID $30)
B0-BF & D0-F4 Jumbig (Enemy ID $33)
C0-DA : Shield Attacker (Enemy ID $34)
A0-AF : Shuffled Blocks (Enemy ID $35)
C0-DF : Totempole (Enemy ID $36)
A0-AF & B0-B2 & D0-DF : Walking Metool (Enemy ID $3B)
A0-BF : Jumping Metool (Enemy ID $3C)
A0-AF : Switch (Enemy ID $41/$3D)
A0-AF & B0-B2 & C0-CF : Spinning Metool (Enemy ID $42)
A0-AF : M442A (Enemy ID $45)
C0-D8 : Skullmet (Enemy ID $46/4B)
C0-E6 : Amoeba (Enemy ID $47)
A0-EF : Skeleton Joe (Enemy ID $48)
C0-CF : Saturn Bot (Enemy ID $49)
D0-EF : Water Metool (Enemy ID $4A)
C0-EF : Helipon (Enemy ID $4C)
B8-BB & C0-CF : Piranha (Enemy ID $4D)
C0-DF : Skull Dropper (Enemy ID $4E)
A0-AB : Assembling Block (Enemy ID $4F)
A0-A5 : Wheel (Enemy ID $51/$52)
F0-FF : Spike Box (Enemy ID $54)
A0-BF : Battonton (Enemy ID $5C)
D0-EF : Mantan (Enemy ID $5D)
A0-BF & D0-FF : Mummy Mauler (Enemy ID $67)
A0-AF & E0-E9 : Worm (Enemy ID $68)
D0-DF : Sinking Platform (Enemy ID $6A)
D0-FF : Mono-Roader (Enemy ID $6B)
B0-BF & D0-FF : Gachappon (Enemy ID $6E)
C0-CF : Pakatto 24 (Enemy ID $72)
F0-FF : Upndown (Enemy ID $73)
A0-AD : Shifting Spike Block (Enemy ID $75/$76)
C0-CB : Water Mine (Enemy ID $77)
B0-B7 : Spark Spine (Enemy ID $78)
A0-B5 : Ladder Press (Enemy ID $81/84)

Effects:

F0-FF : Water Splash Effect / Bubbles

Primary Graphics Load ID list
=============================

00-0F : Stage Graphics Load (Starting from beginning of stage)
10 : Stage Select / Capcom Logo
11 : Title Screen
12 : Debug Menu - Font Load (Unused otherwise)
13 : Debug Menu - Sprite Revert (Unused otherwise)
14 : Weapon Menu
15 : Weapon Menu Exit - Sprite Graphics Revert (Megaman's sprites)
16 : Weapon Get
17 : Password
18-1F : Boss Demonstration Graphics
20-2F : Weapon Menu - Graphics Reload for each stage (Not used at continue point!)
30-3D : Weapon Graphics (Sorted by Weapon ID)
	Note: 30 and 3C points to the same data! Modifying one will modify the other.
3E : Cossack Stage Intro
3F : Dr. Wily Stage Intro
40 : Wily Saucer Scene
41 : -
42 : Bright Man's Stage - Continue Point 1
43 : Drill Man's Stage - Continue Point 1
44 : Pharaoh Man's Stage - Continue Point 1
45 : Ring Man's Stage - Continue Point 1
46 : Dust Man's Stage - Continue Point 1
47 : Dive Man's Stage - Continue Point 1
48 : Skull Man's Stage - Continue Point 1
49 : Ring Man's Stage - Continue Point 2
4E : Cossack Stage 1 - Continue Point 1
4F : Cossack Stage 2 - Continue Point 1
50 : Cossack Stage 3 - Continue Point 1
51 : Cossack Stage 4 - Continue Point 1
52 : Wily Stage 1 - Continue Point 1
53 : Wily Stage 2 - Continue Point 1
54 : Toad Man's Stage - Continue Point 1
55 : Copyright Text / Intro - City Scene
56 : Intro - Megaman's History
57 : Intro - Train Ride

Scroll Graphics Load ID list
============================

00 : Nothing
01 : Hippo
02 : Ring Man BG graphics change, Saturn Bot, Rainbow Bars
03 :
04 : Mummy Mauler
05 : Snailbot BG and SPR

3A : Unused

Sound ID list
=============

ID	BGM SFX

00:	X	Bright Man
01:	X	Toad Man
02:	X	Ring Man
03:	X	Drill Man
04:	X	Pharaoh Man
05:	X	Dive Man
06:	X	Skull Man
07:	X	Dust Man
08:	X	Cossack Stage 1 & 2
09:	X	Wily Stage 1 & 2
0A:	X	Pre-Intro A
0B:	X	Ending
0C:	X	Stage Clear
0D:	X	Password
0E:	X	Game Over
0F:	X	Stage Intro
10:	X	Stage Select
11:	X	Boss Battle
12:	X	Title
13:	X	Credits
14:	X	Weapon Get
15:	X	Cossack Stage 3 & 4
16:	X	Wily Stage 3 & 4
17: 	    X	Flash Stopper
18: 	    X	Rain Flush
19: 	    X	Ring Boomerang
1A: 	    X	Drill Bomb
1B: 	    X	Pharaoh Shot (Load)
1C: 	    X	Lightning (Cossack Stage Intro)
1D: 	    X	Path being drawn (Cossack/Wily stage maps)
1E: 	    X	Charged Shot Release
1F: 	    X	Extra Life
20: 	    X	Unused? - Mega Buster charged?
21: 	    X	Normal Buster Shot
22: 	    X	Mega Buster load start
23: 	    X	MM hits ground
24: 	    X	MM hit by enemy
25: 	    X	MM explodes
26: 	    X	Buster shot on enemy
27: 	    X	Mega Buster loaded (held)
28: 	    X	Drill Bomb Explodes (and more?)
29: 	    X	Health being filled up
2A: 	    X	Selection selected.
2B: 	    X	MM's weapon deflected off enemy
2C: 	    X	Boss-door wrap-up
2D: 	    X	?? Password error?
2E: 	    X	Menu selection
2F: 	    X	Password OK?
30: 	    X	Opening Weapon Menu
31: 	    X	Grasshopper's Jump.
32: 	    X	Wire
33: 	    X	MM appears.
34: 	    X	Unused - Train Flute?
35: 	    X	?
36: 	    X	Wily's lab is going to explode
37: 	    X	Wily's lab is exploding (?)
38: 	    X	Unused - ?
39: 	    X	Appearing/Disapperaing Blocks
3A:	X	Balloon/Wire Adaptor Achieved.
3B:	X	Wily Stage Intro
3C:	X	Cossack Stage Intro
3D: 	    X	Full-loaded mega buster released.
3E: 	    X	Full-loaded Pharaoh Shot released.
3F:	X	Protoman's Whistle
40: 	    X	Wily Saucer
41: 	    X	MM Warps Out
42: 	    X	Unused - Train Car SFX?
43:	X	Pre-Intro B
44: 		Unused (Pointer is 0, no data.)
45:	X	Final Wily Battle
46:	X	Wily Defeated

Game Sequence
=============

                                         +-- Wily Defeated ->>-- JSR --> Ending/Credits **END**
					 |
+- Cossack Stage Map 			 +-- Robot M. Defeated >-- JSR -+- Weapon Get -+
|     |    	      Weapon Menu        |                              |              |
|     | 		    |            |                     (stage already          V
|     |		            |            |                  clear, no Weapon Get)      V
^     V		            |            |                              |              |
^     V			    |		 |                              +------<<<-----+
|    RTS		<<JSR/RTS>>      |                              |
|     V		            |            |                              |
| +->>+>+ Start Level -> [Game Loop] ----+--- Loose Life --------+      |
| |   ^ ^                                          V             |      |
| |   | +-----------<<<<---------------------------+             |      V
| ^   |                                                          |      V
| ^   +---<<<-- RTS ---<<<--- (continue) ----+                   V      V
| |                                          ^                   V      |
| |                                          ^                   |      |
| +-- RTS -<<+    +------ JMP --------<- Game Over -<<- JSR -<<--+      |
|	     |    V                                                     |
+----- Stage Select --<<JSR/RTS>>-- Robot Master Demonstration          |
	     |  ^                                                       |
	     ^  |                                                       |
	     ^  |                                                       |
             |  +--------<<<-------- Password Screen ------<<<----------+
	     |
	     +--<-+
	     |    |
	     |    |
             ^  Password Enter
             |    |
             |    ^
             +----+
             |
	 Copyright/
         Title Screen ---<<JSR/RTS>>-- Intro
	     |
  +-- JSR ---+
  |
  ^
  |
 Reset ($FE00)
 **START**

Hard-wired bank ($7C010-$8000F):
 * Reset
 * Start Level
 * [Game Loop]

Additional Messy Notes
======================

Object/Wall Hit Detection - Object Shape Data (Vertical Hit Detection)
----------------------------------------------------------------------

BYTE	# of components.
BYTE Y add.
BYTE X add.
for each additional component:
	BYTE X add

Sprite Data Formats
-------------------

Animation Data:

Size of Data - 	Description
1 byte		[# of Frames + Page Flag]
1 byte		Frame Length (In Vblank's)
[# of Frames]+1		Tile Usage ID's

Tile Usage Data:

Size of Data -	Description
1 byte		[# of Tiles]
1 byte		Coordinate ID
2 * ([# of Tiles]+1)	Tile Block
	Tile Block:
	1 byte	Pattern Table Tile
	1 byte	Sprite Attribute Byte


Weapon Code Procedure
---------------------

Weapon Handler:
	(Tmp Memory $10/$11 seems to be used for Temps)
	$10: Direction Operand Function
	$11: Sprite ID?

	(Quit if Weapon Energy = Empty)
	Check for B Button Push ($14/$16, AND #$40)

	Release New Object:

	(
		lda $16
		and #3
		beq :+
		sta $420
		sta $31
		jsr $F4F6 (dunno what it does)
		:
	Setting MM's Pose:
		Setting $32 (Pose Length)
		If $33 is 0: {
			Setting $33
			Calling $F446 (X = 0), with $33 + $558(0) }

	Set 420>
	Call $F49C (with args)
	Set 300> to something.
	Set up 3A8>, 3C0>, 3D8>, 3F0> Ranges (Object Speeds?)
	Set up 408> (unknown use) to 04?

	Call $FD75 to subtract current weapon's energy

	Call $F6BE with Sound ID in A for whatever weapon sound effect

Common Object ASM for Weapons/Items:
	jsr	$F413  ;(Object Slot in X register) - update horizontal Object movement (left and right)
	jsr	$F434  ;(Object Slot in X register) - update vertical Object movement (up and down)
	jsr	$884B  ;(Object Slot in X register) - make weapon work with "Shootable" block type.
	lda	$390,x	;$390 is Y screen.
	beq	:+
	;Will remove object if it moves out of top or bottom of screen.
	jsr	$DC00	;(Object Slot in X register) - Kill object.


Explosion Code Procedure
------------------------

This is for a explosion that hurt Mega Man

!!! START : HOW TO CREATE AN EXPLOSION (LIKE WITH DRILL MAN'S BOMB)

20 00 DC  JSR $DC00			Kill object

!!! Load the sprite ID for explosion and call function to set it and reset sprite's properties

A9 62     LDA #$62
20 46 F4  JSR $F446

!!! Object ID now become #$83, multiple explosion

A9 83     LDA #$83
9D 00 03  STA $0300,X @ $0313 = #$2C

!!! Substance and shape now become #$B7

A9 B7     LDA #$B7
9D 08 04  STA $0408,X @ $041B = #$CE
60        RTS

!!! END : HOW TO CREATE AN EXPLOSION (LIKE WITH DRILL MAN'S BOMB)

Kill Enemy Procedure
--------------------
This is useful, because just calling $DC00 doesn't put the small explosion sprite. This is what is used in the original ASM when an enemy dies after a time.
A function to put a enemy exploding sprite when you kill him

!!! Kill enemy

$9EF3:20 00 DC  JSR $DC00

!!! Put a object ID of explosion.

$9EF6:A9 9D     LDA #$9D
$9EF8:9D 00 03  STA $0300,X @ $0317 = #$CE

!!! Set Substance And Shape to #$00, else it deflects weapons

$9EFB:A9 00     LDA #$00
$9EFD:9D 08 04  STA $0408,X @ $041F = #$C0

!!! Load the sprite for the small explosion.

$9F00:A9 62     LDA #$62
$9F02:4C 46 F4  JMP $F446

ASM explanation : Bank $3C, $805E : Crushed by a moving wall?
-------------------------------------------------------------

$805E:A5 30     LDA $0030
$8060:C9 06     CMP #$06
$8062:B0 32     BCS $8096
$8064:A5 22     LDA $0022
$8066:C9 04     CMP #$04
$8068:F0 2C     BEQ $8096
$806A:A2 00     LDX #$00
$806C:A0 3E     LDY #$3E
$806E:A9 B5     LDA #$B5
$8070:85 00     STA $0000
$8072:A5 30     LDA $0030
$8074:C9 02     CMP #$02
$8076:D0 05     BNE $807D
$8078:A9 B7     LDA #$B7
$807A:85 00     STA $0000
$807C:C8        INY
$807D:A5 F0     LDA $00F0
$807F:C9 04     CMP #$04
$8081:D0 07     BNE $808A
$8083:AD 78 03  LDA $0378
$8086:C5 00     CMP $0000
$8088:B0 0C     BCS $8096
$808A:20 28 D4  JSR $D428
$808D:A5 10     LDA $0010
$808F:29 10     AND #$10
$8091:F0 03     BEQ $8096
$8093:20 43 82  JSR $8243
$8096:60        RTS

This ASM is for detecting if megaman became crushed by a moving wall,
and happens every frame during all gameplay, except for Ring Man's stage.
$22 is stage id, the value #$04 means Ring Man's stage.
Its probably only meant for the moving wall in Dust Man's stage.
The reason for the Ring Man exception is probably to prevent the disappearing bars
from crushing megaman, they are moving walls.
There is also additional code for when megaman is in the moving wall section
in Dust Man's stage. If MM's Y coordinate is $B5 or more ($B7 if sliding), the
wall hit detection is skipped. Im not sure why.
(F0 is active Scanline Effect id, #$04 is the one used in the moving wall section.
This value is checked a lot of places to check if MM is in that particular area
of the game.)

Graphics Load Data
------------------

0: Source Bank
1: # of tiles
2: Src Hi
3: Dst Hi

Earlier Version Traces
----------------------

Suggestion: Cossack Stage 3 were meant to have the Sewer Rat enemy and Platforms from Bright Man's stage
	at the beginning of the stage.
Evidence: The graphics for those objects are loaded into the pattern table when the stage starts.

Suggestion: Toad Man's stage had a section where scrolling splits in two, connected at the screen right before
	the first Snail miniboss. Maybe either Wire or Balloon were in Toad Man's stage previously.
Evidence: Between screens $F and $12 in Toad Man's stage, there are two blank screens, which follows regular
	scroll data. The "ordinary" path between screens $F and $12 is connected using extraordinary scroll data.
	(ie Multi-Path data).

Alternate "READY" tiles: A different-looking tile set of "ready" is loaded into the sprite pattern table, among
	the "lightbulb" enemy graphics when Bright Man's stage starts. These might be test graphics, or Capcom
	thought of using a different part of the pattern table for the "READY" tiles.

ROM Version / Regional differences (Incomplete)
-----------------------------------------------

European version:
	Bank $1B ($36010) has some differences in code.
	The sound engine has alot of changes. (Bank $1E)

Rockman version:
	Bank $1C ($38010) has a few changes in code.
	Bank $1B ($36010) has some differences in code.
	Bank $3D: Changes from $B690 / $7B6A0 and on.
	$CF52 / 7CF62 : STA $BF and STA $4C8 is swapped around.

Differences between Rockman 4 ROM dumps (differences from "Rockman 4 - Aratanaru Yabou! (J).nes".)

	Rockman 4 - Aratanaru Yabou! (J) [a1].nes :
		Tile at $8B90: 1 pixel is different (probably corrupt).
		Tile at $269E0: 1 pixel is corrupt.
		Tile at $2DD10: 1 pixel is corrupt.
		Tile at $2EC50: 1 pixel is corrupt.
		Tile at $306A0: 1 pixel is corrupt.
		Tile at $33330: 1 pixel is corrupt.
		Tile at $4BF90: 1 pixel is corrupt.

	Rockman 4 - Aratanaru Yabou! (J) [b1].nes :
		NES header: Initial Mirroring setting is Horizontal.
		Tile at $E020: Slightly different.

Basically, for most ranges labeled "Unused random data", the contents of those ranges
seem all different in both the European version and the Rockman 4 version.