Don't Drop Pickups When Hit
At the "Press Start" screen, press Down, Up, X, Square, Down, Up, X, Square, L1, L2, Square, Circle.
Boss Mode Unlocked
At the "Press Start" screen, press R1, Triangle, Down, Down, X, L2, Left, Square, Right, Triangle, R2, L1.
All CST Unlocked
At the "Press Start" screen, press Square, Up, L2, Left, Triangle, X, R2, Circle, Right, R1, Square, Circle.
Alien Data Unlocked
At the "Press Start" screen, press Square, L1, Circle, L2, Down, Triangle, R1, Right, X, Left, R2, Triangle.
Agent Data Unlocked
At the Press Start" screen, press Up, Down, Circle, R2, Left, L2, Right, X, R2, Square, Up, R1.
Invincibility
At the "Press Start" screen, press Right, X, R1, Triangle, Up, L2, X, Left, L1, Circle, X, R2.
Unlock All Levels
At the "Press Start" screen, press R2, Triangle, Left, Circle, Square, L2, Left, Up, X, Down, L2, Square.
Unlock Making Of Mode
At the "Press Start" screen, press Circle, R2, L2, Circle, Triangle, Down, Square, X, Right, L1, X, Up.
All Weapons Code
At the "Press Start" screen, press Up, Down, X, Square, R1, Triangle, Triangle, Left, Circle, L1, L1.
All Weapons
At the Press Start screen, press Up, Down, X, Square, R1, Triangle, Triangle, Left, Circle, L1, L1, Right. If done correctly, the screen will flash.
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