Spy Hunter/Moon Patrol Cheats, Codes, Cheat Codes for Game Boy (GB)

Infinite lives

At the game selection screen, press Up, Down, Left, Right, Up, Down, Left, Right, Up, Left, Down, A. If you entered the code correctly, you will hear a sound.

Infinite weapons

At the game selection screen, press Up, Down, Left, Right, Up, Down, Left, Right, Up, Left, Down B. If you entered the code correctly, you will hear a sound.