Submachine gun, miscellaneous items
While playing the game, press Triangle, X, Square, Circle, Triangle, Up. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Sniper, miscellaneous items
While playing the game, press Triangle, X, Square, Circle, Triangle, Right. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Rocket launcher, miscellaneous items
While playing the game, press Triangle, X, Square, Circle, Triangle, Left. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Heavy machine gun, miscellaneous items
While playing the game, press Triangle, X, Square, Circle, Triangle, Down. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Shotgun, miscellaneous items
While playing the game, press Triangle, X, Square, Circle(2), Up. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Nail gun
While playing the game, press Triangle, X, Square, Circle, X, Left. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Infinite ammunition
While playing the game, press Triangle, X, Square, Circle, X, Right. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Cycle through spawn points
While playing the game, press Triangle, X, Square, Circle, X, Up. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Maximum charisma
While playing the game, press Triangle, X, Square, Circle, X, Down. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Blind enemies
While playing the game, press Triangle, X, Square, Circle(2), Left. If you entered the code correctly, a message will appear at the top of the screen. You can walk up to enemy soldiers and attack them without being seen; however, your men cannot see enemies, and will not shoot them. Repeat the code to disable its effect.

Slow-motion mode
While playing the game, press Triangle, X, Square, Circle(2), Right. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Fast motion mode
While playing the game, press Triangle, X, Square, Circle(2), Down. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Flymo ragdolls
While playing the game, press Triangle, X, Square, Circle, Square, Up. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.

Invincibility (PAL version)
While playing the game, Triangle, X, Square, Circle, Square, Right. If you entered the code correctly, a message will appear at the top of the screen. Repeat the code to disable its effect.