Home: Game Cheats: TurboGrafx 16

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Full power:
Pause game play and press [Up, Down, Left, Right] three times, 
II, I. Note: This code may only be enabled once per game. 


Bonus ships:
Pause game play, hold Up and press II, I, I, II. Then, hold 
Down and press I, II, II, I. 


Level select:
Hold II and press Run ten times at the "Formation Select" 
screen Use Left or Right to select the starting level.