You have the ability to "steal" other AC's emblems that you fight in the Arena. Simply select the AC that you want to fight and before you challenge this opponent, press Start and Select at the same time (if you did it right you will hear a sound). Go to the Garage and go to Edit Emblem and it will be there.
Change the Wallpaper
This will take any emblem you create and paste it as wallpaper behind all the menu screens. Choose garage from the Main Menu, then choose Edit Emblem and create a new design. When you are done press L1 + R1 + Select. Your design will become the new wallpaper.
Cockpit Mode
When playing, press Start + Square + Triangle to switch to cockpit mode.
Continue from Armored Core 2
Load the saved data from Armored Core 2 in the one player scenario. You will start out with all previously obtained weapons and money.
Enemy Emblems
Every time you defeat an AC in a mission that pilot's emblem will be added to the samples list in the garage.
Fire the Lazer Blade
You can fire a beam of light from your lazerblade. To do this, hit Circle to use the lazerblade, then as the arm comes down hit X. It has no lock so you really need to have good aim. If done correctly it will fire a crescent shaped beam. This cheat only works after you have enabled the 4th death advantage, firing back weapon while moving (see below).
First person view
Hold Triangle + Square + Start while playing the game. The game will pause. Resume the game with the new view.
First person view (Japanese version)
Hold Triangle + Square + Select while playing the game. The game will pause. Resume the game with the new view.
Fixed camera view
Hold Circle + X + Start while playing the game. The game will pause. Resume the game with the view fixed.
Fixed camera view (Japanese version)
Hold Circle + X + Select while playing the game. The game will pause. Resume the game with the view fixed.
Free Money
First find a mission that pays you in advance. Then go into the mission but quit right after the mission starts. If you did it right you get the advance money without doing anything!
Infinite energy for a short period
You have the ability to gain infinite energy for a short period of time. While in the game press L2, R2, and R3(right analog button) at the same time. You will get a system error message and for about a minute your boost energy will be unlimited. After that minute is past, all boost energy will be completely depleted for the same amount of time. After this your energy will recharge and you may repeat the cycle. This is extremely useful when fighting quick enemies in the Arena.
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.
Moonlight sword
On the mission "Kill Struggle Leader", go to the part when the floor bursts open and you fall. Fall all the way in and move around the narrow path to find the last and final laserblade called the "Moonlight". This sword is particularly strong and can reach attacks up to 1500.
New Parts/Areas
Every time you defeat all sorties/missions in a certain area of the map you either earn a new AC part as a reward or new areas open up on the map.
Return to default view
Pause the game, then press Start.
Return to default view (Japanese version)
Pause the game, then press Select.
Stealth
Defeat all challengers in the Arena to receive a pair of stealth back units that will mask you energy signature and block you from being picked up on enemy radar.....great for when playing a friend in VS Mode but it limits the amount of ammo you can carry.
Unlimited EP, Leg WP and Core WP
Once you complete 100 missions, the game will automatically give you unlimited leg weight points, core weight points, and generator output points. So now the only limit will be your cash.
