Become Invincible 
To become invincible, pause the game. Hold L2 and press these buttons: UP, LEFT, DOWN, RIGHT, 
TRIANGLE, SQUARE, X, CIRCLE. 

Get All Weapons 
To get all weapons, pause the game and hold L2. Then press UP, LEFT, RIGHT, DOWN, TRIANGLE, 
SQUARE, CIRCLE, X. 

Have Shield 
Pause the game, then hold L2 and press UP, LEFT, RIGHT, TRIANGLE, SQUARE, CIRCLE. 

Infinite Ammo 
To have infinite ammo, pause the game and hold L2. Then press DOWN, LEFT, RIGHT, X, SQUARE, 
CIRCLE. 

Secondary Weapon Attacks 
Puase the game, then hold L2 and press UP, DOWN, LEFT, RIGHT, TRIANGLE, X, SQUARE, CIRCLE. 

Unlock Stealth Mode 
To unlock Stealth Mode, pause the game and hold L2. Then press: X, X, SQUARE, SQUARE, TRIANGLE, 
TRIANGLE, CIRCLE, CIRCLE

Submitted by cwhiteyuk