151 no underflow

fishing mons:
poliwag (can do non-glitch city CT)
goldeen (double distort)
shellder (get in seafoam 20% or CT in bill's cottage)
slowpoke (CT in forest)
magikarp (double distort or buy at moon center)
seaking (evolve from goldeen or fish in unk dungeon)
slowbro (evolve from slowpoke or fish in unk dungeon)

151 no underflow
name rival preset "ASH" (do not name him ASH from the naming screen!)
check TID at some point and mark it down
buy 7 balls and 1 para heal at mart
get pidgey
heal in pewter (note: if your pidgey cannot be max HP for btw, deposit pidgey, heal and withdraw pidgey)
btw to coin case room (if you had 16 HP, s+q in celadon center)
get coin case
get abra, name it ;;
go to mart, pickup tm18 and drink tms
get another fresh water
go to 2F, sell tms
buy as many great balls as possible (12)
exit mart, get eevee
go back to saffron (DON'T TELEPORT!)
get tm29
trainer-fly on route 6
save+quit at pewter PC
btw to saffron, then to lavender. avoid trainers Kappa
continue to snorlax on route 12, then go to diglett's cave
(safety save) catch level 19+ diglett
swap diglett to the front, fight ekans guy (x6 growl dig x1)
get bike voucher
flash menu, walk to route 6
catch gastly, name VV
teleport back to pewter
exp underflow gastly, evolve to haunter
swap bulba back to front, btw to viridian gym (when you open menu for s+q at btw guy, teach tm29 to haunter)
once in the gym, swap haunter to front
teach tm29 if you haven't so
fight cooltrainer: (psychic x1)
fight blackbelt:
- Machoke: Lick + Night Shade
- Machop: Night Shade + Lick
- Machoke: Lick + Night Shade

walk through the opening created

fight gio:
- Rhyhorn: Night Shade x2
- Dugtrio: Night Shade x1
- Nidoqueen: Psychic x1
- Nidoking: Psychic x1
- Rhydon: Night Shade x2

exit gym, teleport back to pewter
swap bulbasaur to the front, brock skip
don't move after loading save
walk back to where btw guy was, use the empty path to get back to route 3 to reload him
talk to him, btw to silph co
go to 5F, fight rocket (night shade x1)
get card key, make way to rival (pick up TM09)
fight rival:
- Pidgeot: Psychic x1
- Exeggcute: Night Shade x1
- Gyarados: Psychic x1
- Alakazam: Night Shade x1
- Charizard: Psychic x1

get lapras

fight rocket:
- Cubone: Night Shade x1
- Drowzee: Night Shade x1
- Marowak: Psychic x1

fight gio:
- Nidorino: Night Shade x1
- Kangashkan: Psychic x1
- Rhyhorn: Psychic x1
- Nidoqueen: Psychic x1

Pick up Master Ball.
Pick up rare candy on 10F
Exit out Silph Co (Do not use Dig)
Heal in Saffron (depo pidgey if non-max HP)
Deposit all Pokemon except Abra.
T-Fly on route 6 while swapping Master Ball to 6th slot.
Get Missingno Encounter
Swap Rare Candies into 6th Slot, catch missingno with master ball.
Do another T-Fly, toss 1 master ball, swap to 6th slot.
deposit missingno
Get missingno encounter again.
Go to PC
Deposit antidote (so that it dupes master balls)
deposit bottom master ball stack
deposit 1 rare candy
Go to withdraw menu.
swap potion with antidote, then swap with master balls
withdraw antidote
withdraw 199 master balls.
convert trainer id to hex, take first byte (first two numbers from left to right)
if first byte is greater than $63:
	convert to decimal
	subtract 256 by the first byte (decimal)
	withdraw that amount + 99 + 17
if first byte is less than $63:
	convert to decimal
	subtract 99 by the first byte (decimal)
	withdraw that amount + 17
if the amount you need to withdraw is more than 56, then go to the toss menu, toss the 56 master balls, go back to the withdraw menu and withdraw the needed amount
alternatively, you can withdraw without +17 and withdraw 17 a second time
walk out saffron center to warp to route 16
get fly
toss tm27
swap so master ball x99 is the last slot in the inventory
teleport back to saffron
walk to celadon center
withdraw 1 master ball
withdraw haunter
swap haunter to front
walk to route 15
(in battle, swap master ball to 2nd slot)
catch ditto and venonat (bellsprout, weepinbell and pidgeotto are bonuses) (you can skip catching venonat in exchange for venonat CT)
name ditto kk
teleport back to saffron, walk to cerulean.
get dig tm from dig rocket:
- Machop: Lick x1
- Drowzee: Night Shade x1
get bike and swap to first slot, use rare candy on a pokemon, swap to 6th slot, then swap 99 balls to bottom.
teleport back to saffron
bike to vermillion (do not toss to get back to the top)
fight jr trainer-m (female is de-activated):
- Spearow: Night Shade x1
- Raticate: Night Shade x1
deposit all but ditto, haunter, abra (all named a two letter name)
change box
heal in vermillion
bike back to route 6, trainer-fly
walk to gambler, avoid trainers
fight gambler:
- Voltorb: Lick x1
- Magnemite: Lick x1
go to route 12
teleport back to vermillion city
bike to route 6
get mr mime
name mr mime [multiplication sign][multiplication sign]
bike back to route 12
Fight rocker:
- Voltorb: Lick x1
- Electrode: Night Shade x1
teleport back to vermillion
swap ditto to the front (kk)
go to diglett's cave, get CT move
swap rare candy to 6th if you haven't already
do in-battle missingno CT, catch missingno
name missingno EE
look at missingno stats, do in battle horsea CT, catch horsea
name horsea FF
open inventory, swap super rod to 4th slot

do the double double distort method for all pokemon in the party (remember to catch the mutated pokemon while having a pokemon out that's name corresponds to a pokemon not caught yet)

you can catch other pokemon while doing the double distorting, but it may make cooltrainer more finicky