Unlimited lives:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 9652,173 
Invincibility:
Load or reset the game, then execute the following BASIC commands before running or restarting the program. 

POKE 9610,76
POKE 9611,199
POKE 9612,37 
Invincibility (alternate):
Load or reset the game, then execute the following BASIC commands before running or restarting the program. 

POKE 9592,14
POKE 9599,7
POKE 9606,0 
Water is harmless:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 9568,174 
Fire is harmless:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 9566,96 
Collect 30 coins to complete game:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 10862,0 
Adjust speed:
Load or reset the game, then execute the following BASIC command before running or restarting the program. Note: X represents the speed setting, with 1 being the fastest and 255 being normal speed. 

POKE 12765,X