All weapons
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.
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.