Spec Ops: Stealth Patrol Cheats for Playstation

Multiple Codes
First you will need to pause your game, then hold:

R1 + R2 + L1 + L2

While holding those four button you can then enter one of the followign codes.

Invincibility	X, TRIANGLE, SQUARE, CIRCLE
All Worlds and Levels	TRIANGLE, CIRCLE, SQUARE, SQUARE
Level Skip	CIRCLE, SQUARE, X, X
Unlimited Ammo	CIRCLE, SQUARE, TRIANGLE, X
Refill Team Health	TRIANGLE, TRIANGLE, X, X
Refill Team Ammo	X, X, TRIANGLE, TRIANGLE
First Special Weapon	TRIANGLE, X, X, X
Second Special Weapon	X, X, X, TRIANGLE
Heavy Weapon	TRIANGLE X, SQUARE, SQUARE
Rocket Boots	TRIANGLE, SQUARE, SQUARE, TRIANGLE
Jet Pack	SQUARE, SQUARE, TRIANGLE, TRIANGLE
All Crates Powered Up	CIRCLE, X, X, CIRCLE
Instant Shape Building	SQUARE, SQUARE, CIRCLE, CIRCLE
Big Feet	TRIANGLE, SQUARE, SQUARE, X
Big Guns	TRIANGLE, CIRCLE, CIRCLE, TRIANGLE
Indestructible Base	X, TRIANGLE, TRIANGLE, X
Easy Gun Build	CIRCLE, CIRCLE, X, X
Easy Buddy Build	CIRCLE, CIRCLE, X, CIRCLE
Animals Dont Attack	CIRCLE, SQUARE, SQUARE, CIRCLE

Invulnerability (God Mode)
Enter ROCKSTAR as your name when you start the game. Press START during gameplay. You can now toggle Invulnerability on and off from the pause menu.