Temporary invincibility
Press L2 + R2 + R3. A "Limiter Released" system error message will then appear, and you will have unlimited energy for this time. After roughly one minute, the "OB Down" system error will appear. It will last as long as the earlier error, but you will not have any energy. After "OB Down" is finished, your AC will recharge and return to normal. Make sure you finish off your enemy before you become vulnerable again.

Plus cheats
Purposely 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 every item gained in the earlier game. Your pilot name will vanish from the "Pilot name" slot. The more times this is done, the more cheats you will make available. A few examples are better radar (grid system that detects incoming missiles), fire projectiles from laser swords (press Circle, then swiftly press X), cooling twice as fast, being able to fire rear weapons while in motion, and double available energy.

Add beaten AC emblems
Press Select + Start when the victory message appears in the arena to add the beaten AC's emblem to your list.

Steal Emblems
If you see an emblem in the arena that you wish to use, select the right AC and press Triangle to show the spec screen. Then, press Start + Select. A sound will verify entry. Then select "Edit Emblem" to view it.

Control replay view
Go to the Arena and fight anybody. If you do win, there will be an instant replay. Then press Circle during the replay and the view will switch to what your opponent is seeing. Then press Circle again, and the view will switch into an overhead view of the battle.

Overweight cores
Finish the game in mission mode and allow the credits to finish to be able to have cores that are overweight.

Unlimited energy, weight, and arm weight
Finish the game and allow the credits to finish also. You will now be able to play with unlimited energy, weight, and arm weight.

Hints & Tips

Eliminate Leos Kline: Unknown AC part
On the mission where the Earth Government sends you to kill Klein, but requests that you keep their surrounding system intact you can find a new set of energy weapon type arms. Note: This turns out not to be the real Klein but an unmanned AC. Equip a head with a hacking of 4 or higher. In the last hallway before going into the chamber where you will do battle with the fake, you will come across two side doors. The first door will be on your right and the second will appear on your left, just a few feet before the door to the main chamber. On the floor of the small room behind that left door is the hidden AC part. The AC part's description states that they are considered to be a more energy-based version of the modern slug gun.

Ground Based Assault: Unknown AC part
Proceed to the opposite side of the map. Fly underneath the bridge to locate a ledge that has a hidden AC part, which is the highest armored head available.

Infiltrate Radar Base and Destroy Radar Base: Unknown AC parts
There are two AC parts in the same building on both of these levels. Reach the outside, then move all the way to the right to find three buildings with doors on both sides. Shoot the door on far side of the building furthest to the right to find a different part on each of those level.

Defuse Explosives: Extra money
Select the Defuse Explosives level and equip yourself with the Karasawa MK II. Stay far away from the flame throwers and destroy them with the Karasawa. You should not get hit to much and get an easy 43,000 credits.

Destroy the main computer: Unknown AC par
On the mission given by LCC to destroy the main computer, you will play in the same starting area as the radar destroying mission. However, you will start at the place just to the right of the secret part. From here, move left two containers and blow the third one up to obtain the part. The part is a really fast lock on missile launcher that fires 12 in just 6 to 7 seconds with 60 rounds.

Destroy Containers: Unknown AC part
When you have to destroy the crates in the snow mission, enter the crack to the right of the starting spot. Destroy part of the airplane to open a tiny cave. It has a part that makes your left arm weapons or shields power up.

Safeguard Secret Information: Unknown AC part
Equip a head with a hacking of at least 4 . Turn left in the room before the elevator, then open the doors. Shoot the crates in the center to reveal a panel in the floor. Shoot the panel to find a hidden missile launcher AC part.

Stop The Surface Weapon: Unknown AC part
A mission that could be a problem to some is the destruction of the Surface Weapon. There is a hidden weapon that can be a big addition to your Core as well. The weapon is the Karsawa MK II, and it is found directly over the Surface Weapon near a few rocks. To battle the surface weapon wisely, but still have time to obtain the weapon, make sure you have at least 9000+ AP. This is not a definite need if your Core is fast and agile. Next, equip the Grenade Rifle (a right arm weapon), and a Grenade Launcher as a back unit. This may cause your Core to be overweight. An additional back unit may be the Chain Gun (not the Double Barrel Gatlin Gun.) With this type of configuration, select the mission and start. First, destroy its right side weapons. Note that there are two large guns toward its front. Do not skip them. With the right side of the first destroyed, destroy the second weapon's right side. You should now have  20 rounds total between both grenade weapons. Swiftly fly over both weapons and back a ways to a few rocks. Retrieve the weapon on the ground. Turn around and swiftly boost back (overboost if you like) to the weapon(s) and finish off the remaining sides. This may take some practice.

Infiltrate STAI Battleship: Beat massive MT
Obtain a lightweight Bipedal Humanoid Core, equipped with the Karasawa MKII (or other high powered weapon) and the small Grenade Launcher. Locate a good place that you can lie and wait. As the MT approaches from behind, face the opposite direction so you will not get hit by the cannon blasts. When it passes over, aim for the big center part of the MT and fire away at it. It look's like a human torso.

Protect The Train: Unknown AC part
First play the "Protect The Train" mission. When the train arrives, destroy the second to last train car to uncover a hidden AC part. This results in an automatic mission failure, but you get to keep the part. It is a Back Booster extension part that speeds up backwards boosting.

Rescue Research Team: Unknown AC part
Go roughly halfway through the corridor with the floating platform. Continually shoot the different colored disk at that spot. Fall all the way down the opening that appears to find the LS-Moonlight, the most powerful laserblade in the game.

AC Test area: Unknown AC part
Blow up center of the ceiling and fly up there. Now look around to find a hidden AC part

Bonus AC parts
Finish all of the missions below in the mentioned series to access the corresponding part.

Emeraude: ELB-XXE/LAPIN
Balena: HOY-B1000
Zio Matrix: ZLR-ZIO/MATRIX

Beating Werehound
Note: This trick can also be used against other ACs. First, equip your AC with the Bazooka Arms and Multi-Missile Warheads. You also need to have legs that are suitable for flying. Once you have gone into the Arena, select Werehound as your opponent and Etal Base (with every tower). Fly up to the platform on one of the towers. He will not hit you that well there. Then switch to the Multi-Missile Warheads. Try to keep him within the target as long as you can. Keep firing. Some times he will suffer a system error. As his AP goes down, keep firing at him until you have no more missiles. If he is still alive when you run out of missiles, confront him with the Bazooka Arms. This also causes a system error occasionally.

To beat Werehound easily with only a small amount of damage, equip your AC with Hover Craft Legs (cheap), Missile Arms (medium price), and Nighteye Head (medium price). Now use the cheapest Core, the Vertical Missiles (high priced), and any other parts as you like. Choose the Ruined Highway and wait for him to boost to the building that you are on, Note: He will use his small rockets. He cannot lock on; use the Vertical Missiles and keep firing, no matter what happens. He will not fire his arm weapons. If you need to use the R3, boost to the other tall building across the arena and fire your arm missiles. When he does land, press R3 to boost back to the other building. Keep repeating and he will not be able to keep up with you. He will overheat in time and his AP will lower quickly.

Easier money and Nine Breaker
Equip an AC with multiple missiles, then challenge all opponents in the fourth stage (the one with the high towers). Then right away fly all the way up to one of the towers, look down, and pick off your opponents. You will barely ever get hit. If you use auto-fire with fast lock-ons, you will be a Nine Breaker in no time. After reaching Nine Breaker, buy all the AC parts you can, then intentionally die with -50,000c to restart with all AC parts. Get back to Nine Breaker and repeat as desired to build your credits.

Easier money
An easier way to make money once you have finished the game is to do the Rescue The Research Team mission with the 46000c reward. First, go to the garage and put on the altimeter on the Cockpit Arrange section. Then, go thru the mission. As you are falling down the pit, watch the altimeter. As soon as it get's to 1800 ft., then press the button for Over Boost. Try to aim your AC into the tunnel and you should not get shot by any disorder units. Run to the end of the tunnel and open the door. Over Boost to where you located the research team. You should have not been hit to much and the entire process takes a minute.

Eliminating Strung in the arena
Usually in the arena you have to fight Strung in tenth place. However, if you destroy him in mission during the sandstorm where he first recruits you to help him fight, he will appear in the arena.

Beating Matthais
Access Matthais first, choose the Battle Dome and use the Karasawa and a well armored AC. Now fight by keeping him under fire until he takes to the air. Activate the Limiter Release, keep with him, and do not let up. To make it a lot easier, have the Energy Weapon Amplifier and Accelerator.

Proceed to the Falna Craters level. Matthias has a inclination to get in back of you. When the battle starts, do the "Limiter release" trick and fly backwards to where you are about to leave the mission area (near the red line on the radar). Now Matthias will try to get in back of you, and he will step out of the mission area.

Beating Nine Breaker
Before reaching him, he will give you a Sniper Rifle. On the way there you should have collected a lot of credits. Use this to buy the Pursuit Missile launcher. Make a Core with AP higher than 9Breaker's, with the Missile Launcher, Sniper Rifle, and Missile Interceptors. You should be able to beat him in the crater. After that is done, you will then have Stealth Units.

Play the Crater level with the crashed spaceship. Then as soon as the battle starts, turn around instead of fighting. Over boost to the extreme corner of the red out of bounds line, without going out. Wait for Ares to come near you. Do not shoot him because he normally lets you get the first shot. Ares will the start circling you and moving around. He will most likely step out of bounds and you will automatically win the match while taking little or no damage.

Note: A lot of patience is needed for this trick. Pick the Falna Craters level and have a good booster. When the level begins, immediately fly on top of the spaceship in the center of the crater. You should have a set of Multi-Warhead Missiles on each shoulder. Ares will hide under the spaceship, so you may want to finesse him a bit, or taunt him. Fly off the ship, but do not land. Try to lock on to Ares in the air and shoot right away. Ares will launch his Karasawa MKII at you so move around in the air. Once you have shot the missile, fly back to the top of the ship. Repeat this many times and you should take little damage (if you have a mobile AC) and Ares should be beaten. This also works with Prisoner B-24517, Suave, and almost every AC in the Arena. You may have trouble with this if you are fighting someone with Multi or Vertical Missiles.

Just use an AC with vertical missiles on both sides of the back and go to the Abandoned Highway level. Remain on the building you are first on and shoot Ares. This may take some time, but it works. If you run out of ammunition, do not worry. He will not have much remaining if done properly; just attack him head on.

Gain back mission lost arena opponents
Win more than 220 arena battles and bet the Phobos mission. Every arena character (Strung, Brazen, etc.) will then be available.

Boosters
Contrary to most people's belief, the H4/T Boosters are just as strong if not stronger then the Artere and GEX3000 Models. The statistics do lie. This can easily be proven by going into split-screen mode with two of the identical ACs with the exception of the boosters. Pause the game, tape down the X and resume playing. Whoever rings out first has the better booster. The same is also true with the generators. In truth the HOY-B10000 is the best booster in the game. It also recovers faster than the others.

Easier Arena battles
When you are in the arena, get a form of vertical missiles. After that, challenge anyone in the arena at Etal Base. First, you will see a building to the left side of the screen. Strafe and go forward towards this building. After that, jump into a recess on the top of this building. This will provide you with cover for a brief moment. Wait for your energy to recharge, then jump northwest to the top of a large tower. (Northwest can be found by your radar which is forward and left from your starting position). There is a platform on the top of the tower connected to another tower by a catwalk. Remain on the platform. Load the vertical missiles and attack the enemy below. Wait for your vertical missiles to run out before you rejoin the enemy below. You may have problems if the enemy has high AP so get better vertical missile launchers (EWX-VL5241).

Select the Highway. Stay on top of the building at the beginning and start plugging a CPU opponent with missiles. Most of the time your opponent will leave the area if you stand on the part of the building.

Before fighting a hard Arena opponent, buy the Dual Vertical Missile shoulder weapon and the extension that fires four missiles. When you challenge the opponent, select the Desert Arena with the big space ship in the center. When you start, use the "Temporary invincibility" code and fly to the top of the space ship. Stand on or near one of the larger rocket engine objects, turn on your extension, aim straight down, and lock on to your opponent the radar will help. You also may need the extension for fast lock-ons and longer range. With this strategy, you should only get hit when trying to fly up. The only person this does not work on is Funeral Mask. For this, go to the Battle Dome, and equip the flame thrower and shield. When you start, use your shield and the "Temporary invincibility" code then back up into a corner. He should jump on top of you. Aim up and hit him with your flame thrower. Make sure you are as far into the corner as you can be so he cannot land behind you.

In the Etal Base arena, obtain the dual back mounted multi-missile launcher, the higher damaging missile reflection extension, the missile lock on speed up optional part, the missile fire as you lock optional part, the expand lock on range optional part, a good booster (like Athene), a good energy shield, a better FCS (such as DCS-ALM) and a high AP AC. The energy and shell damage reducing options are also suggested. At the beginning of the match, trigger the shield and hit the limiter release (L2 + R2 +R3). In the one minute of unlimited power, overboost to the closest large tower (connected by a skywalk to another tower. Thrust up to its top, and stop. From here, turn on the extension, and lock on to the enemy. You will fire four rockets that will split into ten close to the enemy. This can end up in 3000AP in one hit, and almost always triggers overheat damage. The fire missile on lock part is for fast targets that duck out of lock too fast it maximizes the speed of your salvos. No anti-missile system can cope with this much firepower at once. With your energy shield, even those ACs with weapons that can hit you, will have their damage reduced a lot, since you are at an extreme angle to make a solid hit. The only AC that may give you trouble is the one with dual vertical missiles, but it may run out of ammo. Everyone else should fall before the limiter release goes away. You can let most die from heat. If you run out of ammunition, take arms with wide spread damage. Your enemy should be about beaten, so just dump ammo at him until he caves (grenade launcher is suggested).

This trick needs roughly 150,000 credits. As soon as possible, buy the blue double back weapon that is a double vertical firing missile launcher (takes up both back slots). Also, buy some extensions that are fire support missiles. After equipping those weapons, go into the Arena and battle. Only go to the Abandoned Highway area (where you start on a high building). With your extensions on, fire at your opponent whenever he comes into range, but stay on top of the building at all times. You should be able to easily beat all of the ACs in the arena. Because you are so high, your missiles have plenty of time to get a precise lock on your foe.

Equip your AC with the Vertical Missile Launcher Back Unit and the Arm Mounted Grenade Rifle. Then, select your opponent. Then select the Highway fighting arena. When the battle starts, you will start out on a tall building. Remain on this building. Select your missiles and lock onto your opponent from the rooftop. You may need to walk around to get a lock on your opponent, but you will not lose. If you sometimes stand at the far corner which is almost out of bounds, your opponent will sometimes go out and you will win. This works better with the Auto Missile Firer and the Wide Range Radar.

Build an AC with the caterpillar legs (extremely high load capacity) and equip it with heavyweight cores, two large powerful rockets and bazooka arms. An AC similar to this can easily beat nearly every opponent in the Arena. When you get to the higher ranks, you may want to switch the bazooka arms to grenade launching arms.

Proceed to the moon base (with the wall you go out slightly). Then use the Super Boost immediately before you reach the opening. Stop, turn left or right, then boost again. Your opponent will try to follow and go out of bounds. This tactic works well on everyone except your final opponent.

Make sure you have powerful missiles and the Cannon Recoil optional part. When you have to pick a battlefield, select Etal Base. When you start the battle, turn left and fly to the ledge of the tower. Then, look down. When your opponent comes into sight, keep shooting your missiles on every lock. If you have enough ammunition, he should hit heat every time and will be down in a matter of seconds.

To beat any Arena Boss, use the best booster and generator, equip the longest range FCS and/or optional part and the EWX-BL4 warhead missiles. Then play Falena Crater, fly up to the top of the spaceship, then stay in the air while you fire rockets at the enemy AC. Your AC should not get hit.

Extra Arena fights
If you frequently look at the "Bottom Feeders" of the Arena, in time there will be three new ACs to battle.

Rank #51. Chris Miura (AC-Vex)
Rank #52. Co-op (AC-Millionaire)
Rank #53. Lost Lamb (AC-Stray Sheep)

Note: This is an overweight core so you need the Plus bonuses. It is good in any mission.

Note: This is a highly mobile AC with excellent firepower. With some practice, it has infinite energy and you wont have to land the whole fight. It cannot take hits well so you will have to be good at dodging attacks. You can change the parts slightly if you like other weapons, but keep the energy drain under 4500.

Note: Good mobility type with massive fire power, good AP, and excellent offensive power.

Note: You can put a weapon on this AC or upgrade it. This AC is mainly used to beat the first few Arena opponents so you can receive a weapon. The best thing to do is upgrade the generator, then the booster, then give it the 500 ammo machine gun.

Note: This AC will be overweight. To stay away from this, take off the Back Units and/or replace them with lighter ones or replace the Arm Unit(s).

Note: If your opponent has missile interceptor, use the EWM-5608 on the back left to make him waste every one of them.

Note: This AC is fast with a lot of fire power, but make the shots count. It will take a while to get all the parts but it is worth it.

Note: Is slow, uses ton's of energy. Low ammo costs. Need's a very good pilot. Make good use of the booster, or every single shot fired will hit you.

Note: This Core is maxed out in its weight capacity. No major additions are possible. It is Zio-biased. It has superb missile defense, powerful weapons and a well-balanced ammo-to-armor ratio. It is highly effective against all arena opponents.

Note: Use this AC for missions that need speed. It is able to beat all enemies if used right. Orbit Cannons can bring even some of the tough opponents down to brink of destruction. Its color can be anything, but it looks best in black and green.

Note: Do not let the Grade put you off. A good pilot will destroy almost anything with this AC. Overuse of the booster will swiftly result in you needing to recharge your energy, but that will not take long. Do not forget the double slash with the arms; the second one is about twice as powerful. Also, when using the Extension, get a lock and watch the fireworks.

Note: You should only use this AC if you have all Plus powers. It is slow but powerful and is leader and part one of Team SHADOW.

Note: This is the ultimate heavyweight. It has been given as much firepower as possible. The greatest thing about it is the mobility of it.

Note: This is an overweight AC.

Note: The is the Enigma AC, fitted with a energy machine gun which holds 1000 rounds, a rocket launcher (12 locks maximum), and a grenade launcher. This AC is overweight, moves well, and can make a formidable opponent.

Note: Its performance is rated 45436 (Excellent)

Note: This ultimate Arena AC is really agile. The AP is only a bit over 7000. This AC is both fully "plussed" and overweight. You can interchange a few parts if you like, but have the overall weight under 7000 to keep your rising ability respectable. Stay airborne and constantly unleash the vertical missiles on your opponent. When they run out, remain airborne and pick him off with your arm-mounted missile launchers. Even if the enemy has a jammer and/or missile interceptors, you will still have plenty of ammunition to waste even the most heavily armored behemoth. Note: This AC is useless in regular missions due to the reliance on missiles.

Note: This AC is overweight and limited in ammo. You can have nearly unlimited energy. It is good if you have already finished the game and most of the arena battles.

Note: This is plus and overweight. Only use it if you desire speed and power with the ability to hover over water. Use in the Emurade Carrier Battle level in versus mode. It is part two of Team SHADOW.

Note: This AC is a overweight.

Note: This AC is overweight. It can be used to beat Mathias. Then use the multi-missiles with the extension to kill off his anti-missile supply and some of his AP. Then, use the huge missiles to kill is AP. If that is not enough, use the Karasawa to finish him off.

Note: Although it has a below average rating, it kills opponents very swiftly.

Note: Only use this AC in an arena when facing a slower person in the dome. Also, if you change the arms to EAW-BZD you can effectively beat Klien the last time in Phobos.

Note: This AC is overweight. It has a better FCS and generator. If used properly, this AC can be a killing machine. It can be used to beat everyone in the Arena easily but not for Matthias. Use the laser cannon only if you run out of ammunition in the Arena.

Note: This AC could be overweight and runs slow, but looks nice and handles well.

Note: This AC can beat anyone in the Arena at the Etal Base. Just fly up to the highest point on the level and wait for a lock with the multi-warhead missiles. Now stand and turn, unless they do not come out from under you. If that occurs, fly backwards from tower to tower.

Note: This AC is fast, but it has low AP. if you are good at high speed lock on, this is a good weapon as long as you can keep your enhanced small missiles locked on.

Note: This AC is overweight. In the right hands, it is deadly. By using the pursuit missiles as rockets, you can do plenty of damage. The rating is Excellent, AP is 8443, and it's # rating is 36624.