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.
Agent Data Unlocked
At the Press Start" screen, press Up, Down, Circle, R2, Left, L2, Right, X, R2, Square, Up, R1.
Alien Data Unlocked
At the "Press Start" screen, press Square, L1, Circle, L2, Down, Triangle, R1, Right, X, Left, R2, Triangle.
All CST Unlocked
At the "Press Start" screen, press Square, Up, L2, Left, Triangle, X, R2, Circle, Right, R1, Square, Circle.
All Weapons Code
At the "Press Start" screen, press Up, Down, X, Square, R1, Triangle, Triangle, Left, Circle, L1, L1.
Boss Mode Unlocked
At the "Press Start" screen, press R1, Triangle, Down, Down, X, L2, Left, Square, Right, Triangle, R2, L1.
Don't Drop Pickups When Hit
At the "Press Start" screen, press Down, Up, X, Square, Down, Up, X, Square, L1, L2, Square, Circle.
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.