Unlimited lives:
Load or reset the game, then execute the following BASIC commands before running or restarting the program.
POKE 50291,181
SYS 3968
Unlimited bullets:
Load or reset the game, then execute the following BASIC commands before running or restarting the program.
POKE 9085,0
SYS 3968
Unlimited grenades:
Load or reset the game, then execute the following BASIC commands before running or restarting the program.
POKE 9292,0
SYS 3968