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. 
 
 Add defeated AC emblems
 
 When the victory message appears in the arena, press Select + Start
 to add the defeated AC's emblem to your list.
 
 Steal Emblems
 
 If you see an emblem in the arena that you want to use, select the
 appropriate AC and press Triangle to display the spec screen. Then,
 press Start + Select. If you entered the code correctly, you will
 hear a sound. Select "Edit Emblem" to view it.
 
 Temporary invincibility
 
 While playing a game, press L2 + R2 + R3. If you entered the code
 correctly, a "Limiter Released" system error message will appear, and
 you will have infinite energy during this time. After approximately
 one minute, the "OB Down" system error will appear. It will last as
 long as the previous error, but you will not have any energy. After
 "OB Down" is completed, your AC will recharge and return to normal.
 Make sure you finish off your enemy before you become vulnerable. 
 
 Plus cheats
 
 Intentionally lose the first mission after the Raven test, then die
 with -50,000 credits or less to activate the "Plus" cheats. The game
 will restart from the first level with all items gained in the
 previous game. Your pilot name will vanish from the "Pilot name"
 slot. The more times this is done, the more cheats you will unlock.
 Some examples are better radar (grid system that detects incoming
 missiles), fire projectiles from laser swords (press Circle, then
 quickly press X), cooling twice as fast, being able to fire rear
 weapons while in motion, and double available energy. 
 
 Overweight cores
 
 Successfully complete mission mode and allow the credits to complete
 to be able to have cores that are overweight.
 
 
 Continue from Armored Core 2
 
 Load the saved data from Armored Core 2 in the one player scenario 
 to start out with all previously obtained weapons and money.
 
 
 Limiter Release
 
 To activate the Limiter Release, press L1 + L2 + R1 + R2, then press 
 R3 (Overboost). This will put you into Limiter Release mode for 
 around 40 seconds. The only down side is that you get an OB Depletion 
 indicator after the 40 seconds are up, leaving you totally powerless 
 for 50 seconds.

 
 Bonus missions
 
 Successfully complete the game, save your data, then load the saved 
 data. You can now access three new high-paying missions where you 
 face Stinger in his AC (from Armored Core: Project Phantasma), Phantasma 
 (who Stinger had merged with), and Final Nine-Ball (from Armored 
 Core: Master Of Arena). All three new missions are very tough. However, 
 you can go overweight for all these missions. After defeating all 
 three, you will get some very fast hover legs, and an "Inside" orbit 
 cannon.

 
 Enemy emblems
 
 Destroy an enemy AC during a mission to unlock its emblem in emblem 
 edit mode.
 
 
 Game Shark Codez: 
 
 Master Code (Must Be On):
 EC878260 1432EE9C
 
 Max Money:
 1CA82828 17E9C70C
 
 Infinite AP:
 4CA7F06C 14564E2E
 
 Infinite Power:
 4CA7F070 14564E2E
 
 Infinite Op Part Slots:
 4CDC25B4 1456E7A5
 
 Infinite Inside Ammo:
 4CA7FAB0 1456E788
 
 Infinite Right Ammo:
 4CA7FB30 1456E788
 
 Infinite Back Ammo:
 4CA7FBB0 1456E788
 4CA7FA30 1456E788