While playing a game, hold Triangle, Square, Start and the game will Pause. If you press Start, you will resume game play with the first person view. 

First Person View (Japanese Version)

While playing a game, hold Triangle, Square, Select, and the game will Pause. If you press Start, you will resume game play with the first person view.

Fixed Camera View

While playing a game, hold Circle, X, Start, and the game will pause. Press Start to resume the game with the camera fixed at the pre-location.

Fixed Camera View (Japanese Version)

While playing a game, hold Circle, X, Select, and the game will pause. Press Start to resume the game with the camera fixed at the pre-location.

'Plus' Cheats

If you lose the first mission (after the Raven test), and die will -50,000 credits or less, you will activate 'Plus' Cheats. The game will then restart at the first level with all the weapons you have gained from the previous game. 

Overweight Cores

Beat the mission mode and allow the credits to finish.

Temp Invincibility

While playing a game, press L2, R2, and R3.