Set number of lives:
Load or reset the game, then execute the following BASIC command before running or restarting the program. Note: X represents the desired number of lives.
POKE 3451,X
Cheat mode:
Load or reset the game, then execute the following BASIC commands before running or restarting the program.
POKE 5737,254
POKE 5863,234
SYS 2064