Invincincibility
Hold L1,DOWN,UP,LEFT,RIGHT,RIGHT,TRIANGLE,UP,RIGHT,DOWN.All Weapons
Submitted by Jon
All Weapons:
hold L1,SQUARE,CIRCLE,UP,DOWN,X,TRIANGLE.
Submitted by Jon
Stage Select:
Hold L1,TRIANGLE,UP,X,DOWN.
Submitted by Jon
All weapons and infanite ammo
Pause the game hold L1 then press triangle, square, circle, X.
Submitted by Hank McGowan
Tips/Hints
Pesky Camera Motion
Be careful in areas where the camera angle changes. It can be a killer (literally) in areas you have to jump.
The Ammo Conservation Console
Use common sense, don't use ammo on boxes or use large ammounts on regular soldiers...