Unlimited lives:
Enter JE VEUX VIVRE as a name at the high score screen.
Unlimited lives:
Load or reset the game, then execute the following BASIC command before running or restarting the program.
POKE 5317,165
Unlimited ammunition:
Load or reset the game, then execute the following BASIC command before running or restarting the program.
POKE 43029,181
Unlimited bombs:
Load or reset the game, then execute the following BASIC command before running or restarting the program.
POKE 55190,165