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metal gear knowledge dump

puchiedarcy May 19th, 2015 (edited) 361 Never
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  1. Metal Gear Big Boss Rank FAQ
  2.  
  3. === Versions ===============================================================================================
  4. There are three distinct versions of Metal Gear.
  5. 1. Metal Gear for MSX
  6. 2. Metal Gear for NES
  7. 3. Metal Gear on Metal Gear Solid 3: Subsistence (which itself is on the HD and Legacy collections) on PS2/PS3/X360
  8.  
  9. This FAQ pertains to 3, as it is the only version to have an in-game ranking system, the highest of which being Big Boss.
  10.  
  11.  
  12. === Big Boss Rank ===========================================================================================
  13. In-Game time of less than 45 minutes
  14. Exactly zero enemy kills
  15. Eight or less alerts
  16. Zero or one Ration used
  17.  
  18. Saves are recorded, but irrelevant to Big Boss Rank. This means a BB Rank does not have to be single segment.
  19.  
  20. In-game time starts on difficulty select, and ends when you reach the top of the escape ladder.
  21.  
  22. The in-game time is remarkably accurate to realtime.
  23. It does not use the system clock.
  24. Instead of the clock, the game increments a particular memory value by 1 every 4 frames, under 60fps NTSC conditions.
  25. In-game time is calculated by that memory value divided by 15 to get the total number of seconds played.
  26. For example, if the memory value for game time is at 15, this means 15*4 = 60 frames have passed. 60 frames divided by 60 frames per second means 1 second has passed.
  27.  
  28. The only time the game time stops is during the memory card screens, when the menu reverts to MGS3 styling.
  29. The in game pause dialogue does not pause the in-game timer.
  30.  
  31. When you die, you go back to the last "checkpoint", typically an elevator room. This *resets* your in-game time to when you died, but you still get charged a continue. This means in-game time *should not* be used for runs that have a death in them as it will be inaccurate. Instead, manually time between difficulty select and top of escape ladder.
  32.  
  33. I believe loading new buildings/maps into ram for the first time (i.e. since loading the game from the MGS3 menu) causes a slight delay in game time, adding less than a second to real-time for each building load (so up to 3 seconds). **I believe is on ps3 only**
  34.  
  35.  
  36. Enemies kills only counts towards non-boss humans.
  37. Dogs and scorpions to not count as enemy kills.
  38. No bosses (including any of the 4 "normal" looking guys guarding the suppressor in Building 1) could as enemy kills.
  39.  
  40.  
  41. There are several scripted alerts in the game where an Alert is triggered simply be entering a room, not by being spotted.
  42. Eight are mandatory in a Big Boss run.
  43. There is on on the roof of Building one.
  44. There is another on the roof of Building two.
  45. And there are two near building three; one outside the main entrance and one as soon as you enter.
  46. You go through those rooms 3 times, making 6 alerts from those two rooms alone.
  47.  
  48. Apparently Easy Mode has two alerts on the roof of building one, making the minimum for that mode (and a Fox rank) 9 alerts.
  49.  
  50.  
  51. The one ration is generally used to cross the final electric barrier before Metal Gear.
  52. With full or nearly full HP as Class 4, you can make it across with no ration.
  53. That makes it possible, but not required, to beat the game with zero rations.
  54.  
  55.  
  56.  
  57.  
  58. === General Knowledge ===========================================================================================
  59.  
  60. Text boxes can be accelerated, scrolled through, and dismissed all by holding X.
  61.  
  62. While the game does run at 60fps, every other frame is a "lag" frame where no input is taken and no animation is updated.
  63. This effectively make the gameplay 30fps with every frame of animation being duplicated.
  64.  
  65. There is input delay or more accurately "input lockout" that prevents mashing. My personal estimation is 6 frames of input lockout after every input.
  66.  
  67. You start at 1-star Class.
  68. Every 5 rescued hostages increments your class.
  69. You must rescue 15 hostages to achieve 4-star class in order to beat the game for two reason.
  70.  
  71. The first is you need 16 C4/Plastic Explosives to beat Metal Gear. The only way to hold that much is to have 4-star rank, as 3-star rank can only hold 15.
  72.  
  73. The second is you must call Jennifer on the transceiver with 4-star Class to spawn the Rocket Launcher for pickup.
  74. Rocket Launcher is necessary to defeat the Bloody Brads (for keycard 7) and Big Boss (to finish the escape sequence).
  75.  
  76. The pattern for Metal Gear is R-R-L R-L-L R-L-L R-R-L R-L-R R
  77. I memorized this by breaking it into chunks of three,
  78. and remembering that sets 3 and 4 is simply sets 1 and 2 swapped.
  79.  
  80. (a) R-R-L
  81. (b) R-L-L
  82. (b) R-L-L
  83. (a) R-R-L
  84. R-L-R
  85. R
  86.  
  87. The only "sequence break" is simply not talking to the real Dr. Madnar twice.
  88. First time he tells you to rescue his daughter.
  89. Upon rescuing her and returning to him, he tells you the pattern for Metal Gear.
  90. If you already know it, you don't have to do this part of the game.
  91.  
  92. Ammo boxes increase Pistol, Machine Gun, and Grenade Launcher, and Rocket Launcher ammo.
  93. RC missile, Mines, and C4 all have independent pickups.
  94. You never pickup mines.
  95.  
  96. When you run into an enemy, you take "1 tick" of damage and have a few seconds of invincibility frames (about 2 seconds).
  97. When shot by a bullet, you take 4 ticks of damage. With the body armor, this is reduced to 2 ticks.
  98.  
  99.  
  100.  
  101. === RNG ===========================================================================================
  102.  
  103. The RNG is pretty simple in this game.
  104. The RNG seed is stored as a 64-bit number in RAM.
  105. It is initialized to 0 on game load form the MGS3 menu.
  106. Save does not persist RNG, neither does load.
  107. Quitting a game of Metal Gear to the title screen and starting a new one does not reinitialize it either.
  108. The only way to reset the RNG to 0 is to leave the game and restart it from the MGS3 menu.
  109.  
  110. RNG is incremented in a very fixed manner. It's not the case the RNG is changed every frame or ever second arbitrarily.
  111.  
  112. Certain in game events will take the current RNG value and progress it one time.
  113. By "progress" I don't mean add 1 to; I mean it generates a new 64-bit hash to store.
  114.  
  115. These events are based on the RNG and also increment the RNG to a new value:
  116. (incomplete list, I'm sure)
  117. * Entering a room with a sleepy guard
  118. * Entering a gas room
  119. * When dogs wake up
  120. * When dogs change direction based
  121. * Every second in an alert phase
  122. * Every time fire trooper's firebar extends out
  123. * Every time a gas sprite in a gas room despawns
  124. * Every time Metal Gear's explosion sound effect is played
  125. * Every time the first tank shoots a missile/bullet (including when you are walking up to it from the screens below)
  126. * Every scorpion movement cycle
  127.  
  128. While the RNG can't be directly "manipulated" to a specific value, most of these increments can be controlled by specific player movement to increment the RNG the same number of times every run.
  129.  
  130. === WR HISTORY ==========================================================================================
  131.  
  132. 36mXXs  Various segmented YT videos
  133. 32m51s 02/25/15 puchiedarcy - single seg, NTSC, body armor, 7 ammo in b2 basement
  134. 29m03s 04/07/15 Jaguar_King - ss, PAL, no body armor, 10 RC, 10 rockets/10 C4 in b2 basement, 4 rockets by duck
  135. 26m40s 06/13/15 puchiedarcy - ss, PAL emu, no armor, 5 RC, 8 rockets/5 C4 in b2 basement, 8 rockets by duck
  136.  
  137. PAL is fastest version. While running at only 50ps compared to NTSC's 60fps, Snake and other enemies movement speeds and animations are increased about 10 to 12% faster than NTSC's. You gain time by simply walking faster in PAL.
  138.  
  139. === THE ROUTE ===========================================================================================
  140.  
  141. The primary concerns of the route are:
  142. * Getting keycards to open locked doors
  143. * Getting weapons to defeat bosses
  144. * Rescuing hostages to increase Class
  145.  
  146. Basic Route
  147.  
  148. B1 Floor 1
  149. Get Keycard 1 (needed for gas mask)
  150. Get Gas Mask (to survive gas rooms without having to use rations)
  151. Elevator to B1 Floor 3
  152.  
  153. B1 Floor 3
  154. Rescue Hostage 1
  155. Pick up 5 C4 (need 4 for B1 Basement)
  156. Get Keycard 2 (needed for grenade launcher)
  157. Rescue Hostage 2
  158. Pick up 5 RC missile (need 2 to disable electric floor coming in and out of Dirty Duck)
  159. Rescue Hostage 3
  160. Pick up Grenade Launcher (needed for Hind D, tank 2)
  161. Rescue Hostage 4
  162. Elevator to B1 Floor 1
  163.  
  164. B1 Floor 1
  165. Rescue Hostage 5 (2-star Class)
  166. Rescue Hostage 6
  167. Pick up Submachine Gun (needed for bosses/dogs/scorpions)
  168. Get captured
  169.  
  170. B1 Basement
  171. Rescue Gray Fox (Hostage 7)
  172. Pickup Keycard 3 (needed for parachute)
  173. Pick up Bomb Blast Suit (needed for B1 Roof)
  174. Pick up Enemy Uniform (needed to enter B2)
  175. Elevator to B1 Floor 2
  176.  
  177. B1 Floor 2
  178. Rescue Hostage 8
  179. Rescue Hostage 9
  180. Get parachute (needed for keycard 4)
  181. Elevator to B1 Roof
  182.  
  183. B1 Roof
  184. Hind D
  185. Parachute to courtyard
  186.  
  187. Courtyard
  188. Get Keycard 4 (needed to leave B1)
  189. Rescue Hostage 10 (3-star Class)
  190. Leave B1
  191.  
  192. B1-B2 Desert
  193. Pickup 3 sets of 5 C4s (needed for Metal Gear)
  194. Enter B2 Floor 1
  195.  
  196. B2 Floor 1
  197. Pick up Antenna (needed to call jennifer)
  198. Elevator to B2 Roof
  199.  
  200. B2 Roof
  201. Rescue Hostage 11
  202. Get keycard 5 (needed to get rocket launcher)
  203. Elevator to B2 Basement
  204.  
  205. B2 Basement
  206. Rescue Hostage 12
  207. Rescue Hostage 13
  208. Get keycard 6 (needed for rocker launcher)
  209. Elevator to B2 Floor 2
  210.  
  211. B2 Floor 2
  212. Rescue Hostage 14
  213. Rescue Hostage 15 (4-star Class)
  214. Get Rocket Launcher (needed for bloody brads, big boss)
  215. Elevator to B2 Basement
  216.  
  217. B2 Basement
  218. Pick up 1 pack of 5 C4 (to have 19, exactly enough to finish the game)
  219. Pick up 1 Ration
  220. Pick up 4 sets of Rocket ammo (2 each, so 8, exactly enough for Bloody Brads [4 each])
  221. Elevator to B2 Floor 2
  222.  
  223. B2 Floor 2
  224. Keycard 7 (needed to leave B2)
  225. Compass (needed to get to B3)
  226. Elevator to B2 Floor 1
  227.  
  228. B2 Floor 1
  229. Leave to Desert
  230.  
  231. B2-B3 Desert
  232.  
  233. Enter B3
  234. Get O2 Tank
  235. Back to B2
  236.  
  237. B2
  238. Refill 4 ammo packs to get 6 more rockets (2 for Dirty duck, 4 for Big Boss)
  239. Keycard 8 (needed to get through B3)
  240.  
  241. Back to B3
  242. Win Game
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