Ninja Five-O Gameshark Codes
This page contains Gameshark cheat codes for Ninja Five-O (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 Ninja Five-O (USA) CodeBreaker Codes and check for your code there instead!
Unlimited Health: 03001F08 00000080
Always Level 3: 03041FAC 00000002
Have All Keys: 03001F78 000000FF
Rescues Completed: 03001F7A 00000000
Unlock Time Trial: 03003C0A 00000001
Unlock All Difficulties: 13003C02 0000FFFF
Full Green Bar
Hit Enemies From Anywhere
Hold B to Walk Through Walls
One Shot Kill Everything
Skip Stage (Press Select + L)