First person view:
Press and hold Triangle + Square + Start. Release all buttons, then push Start again.

Fixed camera view:
Push Circle + X + Start while playing the game. The game will pause. Push Start to resume game play with the camera fixed at the pre-location. Note press Circle + X + Select in the Japanese version of the game.

Return to default view:
To return to the default view, press Start to pause your game, then press Start to resume. Substitute Select instead of Start for the Japanese version of the game.

Alternate emblem backgrounds:
Create an emblem in the "Edit Emblem" screen. Then, hold L1 + R1 + Select.

Continue from Armored Core Project Phantasma:
Insert a memory card with a saved game from Armored Core: Project Phantasma and the file should appear yellow at the loading screen. Load that file to start with the same parts and money that you were obtained in that game.

Extra Ex Arenas:
In the Ex Arena selection screen, you will see four sets of question marks if you go down. These will be unlocked after you complete a certain requirement.

FROMSOFTWARE is unlocked after you complete all leg-specific arenas. It features a series of ACs made by From Software employees.

Guest and Champion are unlocked after you complete all of the missions (do not forget to save when prompted). Guest is an arena that contains Japanese magazine publisher's AC creations. Champion is a series of ACs made by finalists from a Armored Core Project Phantasma Tourney held in Japan last year.

Master is an arena that has extremely dangerous ACs. It is unlocked when you get 100% in the overall under System.

Please note that these ACs are not easy to defeat. They will always have an advantage over your AC regardless of how well armed, armored, or fast you are.

Flame Shell:
Defeat one of the earlier opponents in the Master Arena. The Flame Shell shoots a rocket that sets the enemy on fire and reduces AP slowly.

Head, Radar-12:
After defeating the third opponent in the Master Arena you will get this head. The Radar-12 is the best head in the game but looks different.

Mine Dispenser:
Complete the Fromsoft Ex Arena to get a Mine Dispenser. This part shoots out floating proximity mines.

Special Rocket:
Complete the Guest Ex Arena to get a Special Rocket. This part shoots out a blue object that disables the opponent's FCS.

Stealth unit:
Complete the Master Ex Arena to get the stealth unit (back weapon). This item will take you off the radar and is probably only meant for two players.

New laserbalde:
To get the new laserblade, which shoots a laserblade projectile on its own, you must get PROGTECH to sponsor you in the Sub-Arena. Not only will you get this new weapon, but you will receive 50,000 credits.

New laser-powered sniper rifle:
Get PROGTECH to sponsor you in the Arena. You will receive 50,000 credits with the laser sniper rifle, which does 3800 damage (more than twice that of the Karasawa laser rifle).

Strong arm weapon:
Purchase the 136,000 credit laser right arm weapon instead of the Karasawa. Then, equip the following option parts: Energy Weapon Power Increase and Burst Fire Rate for the Energy Weapon. It works better than the Karasawa, and weighs much less.