Invincibility 
Press Left, Square, Square, Square, Square, Up, Triangle, Triangle Triangle, Right, 
Circle, Down, X, Triangle, Triangle, Triangle, Square. 

Infinite Weapons 
Press Left, Square, Square, Square, Square, Up, Triangle, Triangle, Triangle, 
Right, Circle, Down, X, R1, R1, R1, R1, L1, L1, L1, L1, R2, R2, R2, R2, L2, L2, L2, 
L2. 

Fuel and Armor Refill 
Press Left, Square, Square, Square, Square, Up, Triangle, Triangle, Triangle, 
Right, Circle, Down, X, Triangle, Triangle, Triangle, Circle.

Enable Minimum Speed 
With the game paused, press Left, Square, Square, Square, Square, Up, Triangle, 
Triangle, Triangle, Right, Circle, Down, X, Triangle, Triangle, Triangle, X. Your 
minimum speed is now at 0, you can hover by pressing L1. 

Automatic Finish 
With the game paused, press Left, Square, Square, Square, Square, Up, Triangle, 
Triangle, Triangle, Right, Circle, Down, X, Triangle, Triangle, Triangle, Down, 
Down, Down. 

Extra Camera Angles
With the game paused, press Left, Square, Square, Square, Square, Up, Triangle, 
Triangle, Triangle, Right, Circle, Down, X, Up, Down, Left, Right. You get a new 
angle every time you enter this code. 

FMV End Sequence 
With the game paused, press Left, Square, Square, Square, Square, Up, Triangle, 
Triangle, Triangle, Right, Circle, Down, X, Down, X, Down, X, Down, X, Down, X, 
Down, X. 

Various Stages 
At the password screen, enter these to access various stages 

5433 - Stage 1 Clear (Pamir Knot and Super Jihad available) 
0007 - Stage 2 Clear (Gas Mask Blue and Closing Time available) 
1213 - Stage 3 Clear (Dia de los Muertos available) 
0224 - Stage 4 Clear (Trident Strike available) 
7154 - Stage 5 Clear (Area 51 available)