Cheat mode:
Load or reset the game, then execute the following BASIC command before running or restarting the program.
POKE 59626,189
Cheat mode (alternate):
Load or reset the game, then execute the following BASIC commands before running or restarting the program.
POKE 19287,47
POKE 19288,0
SYS 13312
Invincibility:
Load or reset the game, then execute the following BASIC command before running or restarting the program.
POKE 15489,48