Creatures GameShark Codes (USA)
This page contains GameShark cheat codes for Creatures (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 Creatures (USA) CodeBreaker Codes and check for your code there instead!
(Master Codes) Must Be On
19052B41 976E7379
9B9FF2AA 2A5AA835
GS Button For Slow: 78960794 27667199