Pause the game, hold L1 and press Square, Circle, Up, Down, X, Square. If you entered the code correctly, you will hear a gunshot.
Checkpoint Select
Pause the game. Hold L1 and press Square, Circle, X. Release L1 and a new option will appear. That option will allow you to warp to any check point in the stage.
Easy way to defeat War
To defeat War easily you must do these steps. First you must take out those two turrets then there will be an explosin. Start shooting at War. When he runs out of life energy he will turn into a giant. While your running instead of shooting him, use your bomb. Note: Only use your bomb when you're the explosive barrels.
Everlasting Smart Bomb
To activate the Everlasting Smart Bomb press L1, L1, R1, R2 while your playing. This will launch a Smart Bomb that will never end untill It clears everyone in your path.
Infinite lives
Pause the game, hold L1 and press Triangle, Circle, X, Square. If you entered the code correctly, you will hear a gunshot.
Level select
Pause the game, hold L1 and press Triangle, Up, X, Down. If you entered the code correctly, you will hear a gunshot. Then, select "Exit" to return to the main menu with a new option.
Refill health
Pause the game, hold L1 and press Square, X, Triangle, Circle. If you entered the code correctly, you will hear a gunshot.
Skip to last place of death
Pause the game, hold L1 and press Square, Circle, X. If you entered the code correctly, you will hear a gunshot.
All weapons...