500 Thermal Energy Points
Description: Add 500 Thermal Energy Points automatically
How to: Pause the game at any time and insert the following button combination:
Up, Up, Down, Down, Left, Right, Left, Right, Square, Triangle, R1 & L1 (simultaneously).
*** A sound will confirm correct entry. This code can only be used on easy mode and story mode, and must be re-entered as you traverse different stage.

Infinite Health
Description: infinite health
How to: Pause the game at any time and insert the following button combination:
Down, Down, Down, Up, Triangle, Up, Triangle, Up, Triangle, Up, Up, Up, Down, Square, Down, Square, Down, Square, Left, Triangle, Right, Square, Left, Triangle, Right, Square, R1 & L1 (simultaneously).
*** A sound will confirm correct entry. This code can only be used on easy mode and story mode, and must be re-entered as you traverse different stage.

Infinite Ammo
Description: infinite ammunition
How to: Pause the game at any time and insert the following button combination: R2, R1, Triangle, Square, Right, Down, Left, L1, L2, R2, R1, Triangle, Square, Right, Down, Left, L1, L2, R2, L2, L1, R1, Triangle, Left, Down, Square, R1 & L1 (simultaneously).
*** A sound will confirm correct entry. This code can only be used on easy mode and story mode, and must be re-entered as you traverse different stage.

Extreme Difficulty
Description: Unlock Extreme Difficulty
How to unlock: Beat the game once through on normal difficulty.