Galaxian 3 Cheats

Debug mode:
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Press L1, R2, R1, L2, Up, Down, Up, Down when the
Namco logo flies on the screen.
Ghost player:
Enter the play record screen and enable that feature. Start a
game and play as far as possible. Then, enter the gunner
battle option and press Right(2) to select "Ghost". Start
another game to have your self as a partner.