top user:gfh-77

0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Unlimited weapons, energy, and shields

Hold Down + 3 + 4 + 6 + 7 at the mission selection screen. A sound will confirm correct code entry.

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Bonus lives

Hold 3 + 6 + 9 + # at the mission selection screen. A sound will confirm correct code entry. Up to nine extra lives may be selected.

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Level skip

Hold 2 + 4 + 6 + 7 + 8 + 9 at the mission selection screen. A sound will confirm correct code entry.

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Switch day and night

Hold Up + A + B + C + 7 during game play.

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Alter globe speed and direction

Hold 4 + 6 at the mission selection screen.

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Display alternate monitor frame

Press Right + C + 1 + 4 + 5 at the mission selection screen.

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Alternate ground appearance

Hold Up + A + B + C + 3 during game play.

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Debug mode

Press Up + A + B + C + 6 during game play. The top right number indicates the current frame rate.

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Music select

Press Up + A + B + C + 0 during game play.

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Alternate "Ammo depleted" notice

Press C + 4 + 8 at the mission selection screen.

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