Level Select

When the "Start" and "Configure" options appear at the title screen, press [Up][Down][2][Left][Right][2][Up][Down][2] before the Alien 3 logo fades out.

Extra ammo

Play a normal game and put CHEAT as your initials when you get a High Score. After that, start a new game to start with extra ammo.

Action Replay codes

Infinite energy

See the main page for Alien³ (エイリアン3)

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