Pokémon Red and Blue Game Genie codes
This article lists Game Genie codes for Pokémon Red and Blue.
GameShark simulator (breaks OAM sprites)
XXB-FCB-E65
EAB-FDB-6E9
YYB-FEB-F73
ZZB-FFB-192
C9C-00B-4CA
(This is too many cheats for the physical retail Game Genie, so at present it's unknown if this can be done on an actual Game Boy. The code corresponds to 01XXYYZZ from a GameShark and should be used as soon as the game is powered on.)
RNG Plays Pokémon Game Genie version
D30-01B-089
Make Pokémon Red's title screen say "GreenVersion" (Red only)
645-A3B-197
635-A2B-6EF
625-A1B-6EB
Wild encounters are never updated after changing maps
C9E-B8B-6EE
(Can also be used as a 'no encounters' code if started in a building, or an 'old man glitch anywhere' code after watching the old man's demonstration)
Change Pidgey's Pokédex number:
XX0-47A-A2A
Change Rattata's Pokédex number:
XX0-C8A-A26
(Replace XX with the Pokédex number in hexadecimal you want. Both can be used to access artificial glitch Pokémon families)
Replace Oak's intro Nidorino:
XX should be replaced with a hexadecimal Pokémon value from The Big HEX List.
XX1-6D9-7F4
'Instant win' every battle
C91-1EB-5D4
Notes: Similar to Pokémon Gold, Silver and Crystal behavior for having no available Pokémon on the field.
Access Trainer classes:
XXF-549-C49
3EF-539-B31
(XX should be replaced with the desired Trainer class (actual index number or Trainer escape glitch value -200). Artificial Trainer classes are supported)
Sprites aren't filled in properly and look like a painting
C96-BFD-081
Lots of moves do no damage or miss
C9F-65A-2A9
(The bad poison effect from Toxic is an example of something that still causes damage, so bringing a Pokémon knowing Toxic is useful here)
Metronome move picker:
XX3-639-804
3E3-629-D5D
(Requires a Pokémon that knows the move. XX should be replaced with 01-A4 excluding 76 (Metronome itself). The impossible values 76 and A5-FF, 00 result in a freeze.)
Ghosts don't have ghost sprite and can attack you. Can't attack them:
C98-3AA-081
Battle corruption, if wild battle "invisible battle" mode:
C90-4CB-D5D
Trainers have Charizard 'M with excessive HP:
C9C-53A-081
Break Pokémon and some Trainer sprites:
C94-FDD-F77
Predef commands are broken.
C9E-6DC-4C1
Notes: The title screen intro is skipped, some sprites never load and you start in a Glitch City with no money. You're trapped as well with these orange lines in front of you that makes it look like Red is trapped behind bars. Can't load save data, but doesn't destroy it after you turn off the power and play without this code
Breaks beginning of bank switch function
Notes: Also breaks many sprites and game functions. Text at the beginning of title screen intro is missing as well
C95-D6C-2A9
Instead of Trainer approach music, the previous music continues to play:
C93-E8C-081
Game Corner slots emote bubble modifier:
XX3-368-E62
(03 and up are glitch emote bubbles)
Base stats modifications
Magikarp
XX must be replaced with the desired base stat in hexadecimal.
XX1-DFA-B3A: HP
XX1-E0A-C42: Attack
XX1-E1A-3B6: Defense
XX1-E2A-A2B: Speed
XX1-E3A-B3A: Special