NES Game Genie Cheats
To use these cheats, you must combine the game with a Game Genie. At the code entry screen, enter the following codes:
SZUGGTVG - Infinite lives
AEESKGZA - Start with one life
IEESKGZA - Start with six lives
AEESKGZE - Start with nine lives
GEEPOTPA - Extra energy on heart pick-up
GZNOUGST - Infinite pellets after pick-up
GPSPXVZA - Double usual pellets on pick-up
IASPXVZA - Half usual pellets on pick-up
Sega Genesis Cheats
To skip a level, press start to pause, then enter A, B, Down, A, B, Down, Left, Up, C.
There are two opportunities to gain extra lives during game play. The first appears on level three. While in the museum, proceed to the far right end to collect the extra life.
The second chance at extra lives appears in level five. After reaching the top of the level, go to the left side of the screen and allow Batman to fall straight down. You will lose a life, but collect three extra lives in the process.
Batman Game Boy Cheats
The Game Boy version of Batman does not have any cheats. It does, however, have an "Easter egg." To hear a "sound test," load the title screen, then press up/right and then start.
Also, be sure to collect Batarangs, as they allow you to kill enemies quickly and from a safe distance.
In level 4-2, there are power-ups hidden in rocks. Break the rocks to reveal small, helpful hearts.