Alien Disruptor:
Beat the game on Expert to get the disruptor.
Debug mode:
Hold Z and press Right, Left, Up, Down, A, B, Start when Press Start appears on the opening screen to access a debug menu.
Eighth Level:
The secret eighth level is accessed by finishing the previous seven levels on the Hard setting.
Shoot down the President:
Hold Z, C-up, and C-down during game play, then fire a homing cluster at an enemy plane. The president will jump out if the H-Cluster hits.
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