Cheat mode:
Type TECHNIQUE at the title screen to enable cheat mode. Press one of the following keys during game play to activate the corresponding cheat function.



Effect Key 
Extra energy [F5] 
Extra time [F7] 



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Level skip:
Enable the "Cheat mode" code. Then, press [F1] to pause game play and press [Cursor Left]. 
Unlimited time (level 1):
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 43056,173 
Unlimited time (level 2):
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 40145,173 
Unlimited time (level 3):
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 38440,173 
Unlimited time (level 6):
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 38180,173 
Unlimited bullets (level 3):
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 38028,173 
Unlimited bullets (level 6):
Load or reset the game, then execute the following BASIC command before running or restarting the program. 

POKE 37954,173