Level skip:
Press [F1] [F1] to advance to the next level. 

Unlimited lives in level 1:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 37456,173 
Unlimited lives in level 2:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 36690,173 
Unlimited lives in level 3:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 31852,173 
Unlimited lives in level 4:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 35481,173 
Unlimited lives in level 5:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 35771,173 
Unlimited lives in level 6:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 36879,173 
Unlimited lives in level 7:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 34444,173 
Unlimited shurikens in level 1:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 46594,173 
Unlimited shurikens in level 2:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 45218,173 
Unlimited shurikens in level 3:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 40153,173 
Unlimited shurikens in level 4:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 44925,173 
Unlimited shurikens in level 5:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 44707,173 
Unlimited shurikens in level 6:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 45788,173 
Unlimited shurikens in level 7:
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 43049,173