First person view
While playing a game, hold Triangle + Square + Start. The game will pause. Press Start to resume the game with the new camera view. For the Japanese version of the game, hold Triangle + Square + Select.
Fixed camera view
While playing a game, hold Circle + X + Start. The game will pause. Press Start to resume the game with the camera fixed at the pre-location. For the Japanese version of the game, hold Circle + X + Select.
Return to default view
To return to the default view, pause the game, then press Start to resume the game. For the Japanese version of the game, press Select instead of Start.
Extra lock-ons
Equip your core with the laser sword and missiles. Then, begin a game and approach an enemy from a safe distance. Draw the sword and press Up, Down, R1, L1 to gain an extra lock-on. Note: Up to six additional lock-ons may be accumulated.
Alternate emblem backgrounds
Highlight an emblem and enter the edit screen. Then, hold L1 + R1 and press Select.
Modify pilot name
Highlight the "A.C. Name Entry" option, hold Select, and press X.
Continue from Armored Core
Successfully complete the original Armored Core and save the game. Then, load that game into Armored Core: Project Phantasma to start with your previously obtained parts and money.