Game Boy · cheat codes

Ninja Boy cheats & codes

17 codes for Ninja Boy on the Game Boy, including Game Genie, GameShark codes.

Game Genie (1)GameShark (1)Other codes (15)

Ninja Boy Game Genie codes

How to use: Galoob's Game Genie plugged in between the console and the cartridge. Type the codes in on its start-up screen, then press Start. In emulators, add them through the cheat menu and choose the Game Genie format if asked.

Effect	Code
Infinite Lives For Jacks	`085-5CA`

Ninja Boy GameShark codes

How to use: GameShark (sold as Action Replay outside North America) codes are entered on the device's menu or in your emulator's cheat menu. Some games need a "master code" or "must be on" code enabled first, so turn that on if a list includes one.

Effect	Code
Infinite Lives For Jacks	`010408C9`

Ninja Boy Other codes

How to use: Additional codes collected by the community. Enter them through your emulator's cheat menu, choosing the format that matches your emulator.

Effect	Code
Infinite lives	`A75-5BA-19E`
Start with 10 lives	`0A0-35D-F7E`
Start with 20 lives	`140-35D-F7E`
99 K's on pick-up	`3E3-C39-191`
Infinite K's on pick-up	`A7A-399-19E`
Infinite time in bonus rooms (switch off to leave bonus section)	`A7D-298-19E`
Hit Anywhere	`00E-279-C43`
Invincibility	`015A15C9`
Door Is Always Open	`0100D9C9`
Infinite Lives For Jacks	`085-5CA`
Infinite Lives For Jacks	`010408C9`
Stage Select	`005-5CD-19A`
Invulnerability	`181-CA8-6EA`
Blink Longer After Loosing A Life	`FF1-CD8-3B8`
Don't Stop Blinking After Loosing A Life	`004-D5E-19E`

Using cheats today

Original cheat devices like the Game Genie, Action Replay and GameShark still turn up second-hand and work with original cartridges. Most modern emulators also have a built-in cheat menu that accepts these formats, so you can toggle codes on and off without extra hardware. Codes can differ between regional releases and revisions of a game; if one doesn't work, try the code list for another version.

Cheats can corrupt save files in rare cases, so back up your saves before experimenting.

More Game Boy games with cheats

Alleyway Game Boy · 1989 · Action Classic

Operation C Game Boy · 1987 · Action Classic

Darkwing Duck Game Boy · 1993 · Action Classic

Mega Man: Dr. Wily's Revenge Game Boy · 1991 · Action Classic

Mega Man III Game Boy · 1992 · Action Classic

Mega Man IV Game Boy · 1993 · Action Classic

Back to Ninja Boy: is it worth playing?

Cheat codes are from the libretro-database community collection, used under CC BY-SA 4.0; the code tables on this page are shared under the same license. Codes are provided as-is: some may not work on every version of the game.