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

POKE 4527,165
POKE 4301,173
POKE 12788,208
SYS 4301 
Invincibility:
Load or reset the game, then execute the following BASIC commands before running or restarting the program. 

POKE 4527,165
SYS 4301 
Turbo mode:
Load or reset the game, then execute the following BASIC commands before running or restarting the program. 

POKE 4301,173
SYS 4301