All the Vs. Characters:
At the ``press start`` screen press Up, Down, Down, Right, Right, Right, Left, Left, Left, Left. then press Circle and start at the same time. This will give you all of the versus characters.
Sudden Death, Trial, and Max Power Modes:
To get these modes beat the game on hard. Max power mode gives you infinite ammo.
Trial Mode Alternate:
When it says press start press Up, Down, Down, Right, Right, Right, Left, Left, Left, Left, then Square + Start at the same time. Trial mode lets you play any level in the game you want to.
Max Power Mode:
At Press Start screen press L1, R2, L2, R2, L2, Triangle, Circle, Triangle, Circle, the hold L1 and press START. You must of entered this before it goes to demonstration mode. If you hear a gunshot sound then you`ve done it correctly. This allows you to start a game with every gun and infinite ammunition.
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