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Instant double shot power-up:
Pause your game after passing the first Boss and
press Up(2), Down(2), Left, Right,
Left, Right, L2, R2. A sound will
confirm correct code entry. This may only be up to 25 times,
equal to the number of levels that have been successfully completed.
Instant laser shot power-up:
Pause your game after passing the first Boss and press
Up(2), Down(2), Left, Right, Left,
Right, L1, R1. A sound will confirm correct
code entry. This may only be done up to 25 times, equal
to the number of levels that have been successfully completed.
Bonus credit:
Every hour of accumulated game play will add one bonus
credit to your total.
Free play:
Accumulate 18 hours of game play to unlock free play
mode (unlimited credits).
Weapon edit mode:
Finish the game. Press R1 in
the weapon selection screen to turn on weapon edit mode. Press
L1 to return to the normal weapon selection.
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