Batman: The Movie

Unlimited lives:
Load or reset the game, then execute the following BASIC command before running or restarting the program.

POKE 4866,173

Unlimited lives (alternate):
Load or reset the game, then execute the following BASIC command before running or restarting the program.

POKE 4739,173

Invincibility:
Load or reset the game, then execute the following BASIC commands before running or restarting the program.

POKE 4679,173
POKE 63757,96

Unlimited time:
Load or reset the game, then execute the following BASIC command before running or restarting the program.

POKE 4933,173