Pokemon Leaf Green Wild Modifier Codes: Names that begin with 'M' (USA)
This page contains Wild Pokemon Modifier Gameshark cheat codes for Pokemon Leaf Green (USA). If you're playing on an emulator you can usually input codes very easily by accessing a tab off the top of the toolbar. Anyone playing on a physical Gameboy will need to purchase a physical Gameshark device to use these codes.
If you're using an emulator and still can't figure out how to setup these codes, you're in luck! There's two common emulators for GBA games, the mGBA and VisualBoy Advance. Follow the link provided for the emulator you're using to be taken to a guide explaining how to get these codes working.
Don't see the code you're looking for on this page? Head on over to my Pokemon Leaf Green (USA) Gameshark Codes and check for your code there instead!
The codes on this page will change the type of Wild Pokemon you encounter out in the field while leaving the Pokemon's stats/level/attributes the same as the Pokemon your encounter. I've personally tested many of these codes and can confirm that they work. However, I have a simple cavaet to that... If you're using a version of Pokemon Fire Red/Leaf Green that is a fan edit/hack then these codes will not work. To learn more about hacked ROMs and how to identify them follow the link provided.
After using the codes on this page and deleting them/turn them off, the wild pokemon you encounter out on the field will still be altered. To fix this, save (regularly or with a save state) and then close out your emulator/turn off your game. When you load it back up, everything will be back to normal.
Machamp (Pokedex #68)
594F7021 3B4E81A7
3BF5B7C4 061AAA45
Machoke (Pokedex #67)
594F7021 3B4E81A7
95EFD5EA DD857E98
Machop (Pokedex #66)
594F7021 3B4E81A7
3BF5B7C4 061AAA45
Magby (Pokedex #240)
594F7021 3B4E81A7
D77AEB51 E63292DB
Magcargo (Pokedex #219)
594F7021 3B4E81A7
A58E1198 6E004BAD
Magikarp (Pokedex #129)
594F7021 3B4E81A7
04658924 E67574E2
Magmar (Pokedex #126)
594F7021 3B4E81A7
C644F8D1 4159A2D6
Magnemite (Pokedex #81)
594F7021 3B4E81A7
3C17AEA9 5DC9D705
Magneton (Pokedex #82)
594F7021 3B4E81A7
B8BD13C5 E3E7D9B3
Mankey (Pokedex #56)
594F7021 3B4E81A7
DAAB0C35 55611812
Mantine (Pokedex #226)
594F7021 3B4E81A7
3AF8DB31 042E9DF9
Mareep (Pokedex #179)
594F7021 3B4E81A7
0783E965 C5165BF8
Marill (Pokedex #183)
594F7021 3B4E81A7
51EB125F EAA0FCBE
Marowak (Pokedex #105)
594F7021 3B4E81A7
51EB125F EAA0FCBE
Meganium (Pokedex #154)
594F7021 3B4E81A7
A2F7F837 7F974DEB
Meowth (Pokedex #52)
594F7021 3B4E81A7
5F38FD3F 5D7412A3
Metapod (Pokedex #11)
594F7021 3B4E81A7
DC725D4E 3A20792F
Mew (Pokedex #151)
Mew will not obey you if you catch him in the wild without an event.
594F7021 3B4E81A7
B751BDF4 95CEF4CC
Mewtwo (Pokedex #150)
594F7021 3B4E81A7
4C77BA3F CA4EDCB6
Miltank (Pokedex #241)
594F7021 3B4E81A7
1A55F1D1 2FCDADEA
Misdreavus (Pokedex #200)
594F7021 3B4E81A7
2E5E5AEB 22EBF9FF
Moltres (Pokedex #146)
594F7021 3B4E81A7
F8DEC3CC A014B094
Mr. Mime (Pokedex #122)
594F7021 3B4E81A7
0922D9A2 C1E680BA
Muk (Pokedex #89)
594F7021 3B4E81A7
729160A9 F8F73577
Murkrow (Pokedex #198)
594F7021 3B4E81A7
98F8C8F7 EEA657B9