Forsaken Codes -

Cheat options:
Highlight the "Options" selection at the main menu and quickly press Left, Right, Left, Right, X. Then, enter the options screen and select "Global Options" to access all weapons, all levels, invincibility, bonus characters, and enemy firing freeze. :
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All weapons::
Press X, Circle, X, Circle, X, Circle, R1, R2, L2, L1. Note: This may only be done twice per game.