Here are some cheats and tips for the game Batman.
SZUGGTVG Infinite lives
AEESKGZA Start with 1 life
IEESKGZA Start with 6 lives
AEESKGZE Start with 9 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