Level select:
Press C-Up(7) when "Press Start" appears on the opening screen.
Debug mode:
Hold Z and press Right, Left, Up, Down, A, B, Start when "Press Start" appears on the opening screen.
Shoot down the President:
Press Z + C-Up + C-Down during game play, then fire a homing cluster at an enemy plane.
Power chopper:
Hold L + R + Z and press Start at the main menu before selecting a chopper.
Chopper preview:
Highlight a chopper on the chopper selection screen. Press L to display the statistics screen. Press the Analog-stick to control the rotating model of the chopper.
Alien weapon:
Complete level 7 under the expert difficulty level. Then, fight on the moon to purchase the alien homing plasma weapon.
King 10:
Locate King 10 in level 7, defeat him, then complete the mission.
Stingray:
Locate Stingray in level 7, defeat him, then complete the mission.
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