Halo 3 Cheats for Xbox 360

The following cheats can be performed during a local match or replay only. You must simultaneously PRESS & HOLD the following buttons for 3 SECONDS to toggle the effect on / off....

Complete the following achievements to unlock Xbox Live Gamerscore points....

Complete the indicated task in Campaign mode to unlock the corresponding armor part in Multi-player mode....

Complete the final mission under the Legendary difficulty setting....

Collect the hidden skulls throughout the game to unlock the pieces of Hayabusa armor....

Katana is unlocked when you complete all Achievements (1000/1000) and find all skulls.....

A list of the Skill and Experience needed to advance in rank. Note: you can skip ranks once there is a set skill requirement. For example, many people go from Lieutenant Grade 2 (Skill:10 EXP:85) stra...

If you do the following things you will get the medal while playing multiplayer. When you do the task usually it will show you by a little icon of the said medal appearing in the corner of the screen....

To get katana armor you need to get 1000/1000 gamescore....

Complete the following achievements to unlock Xbox Live Gamerscore points....

Complete the following achievements to unlock Xbox Live Gamerscore points....

Complete all vidmasters then go to www.bungie.net , login as your xbox live account and then go to stats, my stats & files, Service record click on it and last but not least upgrade to recon. -Doo...

You can only claim/collect the skulls under the Normal, brave or Legendary difficulty settings. You must start from the beginning of the mission. You won't be able to see the skulls in the event you l...

From the start of the "Crow's Nest" mission, without moving anything, you can see a massive pipe above you. Walk up the stairs, then up the next set. Turn to your left and jump up on the she...

In the first mission, get to the area where you see the Phantom overhead. A Marine will point it out. Jump over the rocks and follow the path on the right. When you reach the cliff, there will be a ro...

Immediately after the first objective of the "Crow's Nest" mission, while en route to the barracks you will fall down to a pipe. Get to the end that pipe. Look over the edge to find a small ...

After freeing Johnson plus killing all the Covenant that come in the Phantoms in the "Sierra 117" mission, walk to the Pelican that arrives to select you up. Face the cargo bay, but in lieu ...

Follow the normal path in the "Halo" mission until you reach a cave. Hug the right wall until it branches off into a small path. At the end of this path is some rubble, and in front is the s...

Mission: Cortana - When in the circular type room with all the flood look for a small structure piece next to two archways, jump on top if it and up on the rocks to the top left, turn left and jump up...

On Tsavo Highway, about halfway through the mission (right after you are forced to walk through a large blue barrier), you will come out of a tunnel on the highway, and see a large pipeline on your le...

In "The Storm" mission, do a grenade jump off a Warthog; or get a Ghost and go back to the ramp from which you first appeared. Use the Ghost to push a big square crate over to the front of t...

First pick up a grav lift from the small building near where you fight the scarab. Now proceed through the level until you reach the second sloping hallway (stairway), you should see some partitioned ...

In "The Ark" mission, enter the valley to the right after the wrecked Phantom. Look to the left to find a large boulder. Use a Ghost to reach the side of the boulder that is closest to the b...

In the "Floodgate" mission, while you are walking down from the anti-air gun destroyed in the last mission, you will see a ramp next to a missile launcher. Near this ramp is a checkpoint. Af...

In "The Covenant" mission, shut down Tower 1 and get access to the Hornet. Fly to Tower 2 (which is the one that the Arbiter shut down). Go up the stairs. Go to the middle part that connects...

When playing in Co-op under the Legendary difficulty setting, it is best to have one player keep their distance from the enemy at all times. By doing this, if the rest of the players die they will res...

After you come into contact with the snipers in the woods, follow along the left rock path. You will find a strange family of monkeys holding a teddy bear....

Start "The Ark" mission. After entering the first building take a left into another door. You will be in a curved corridor. On the inside is a Terminal. After activating the bridge in "...

When you kill any Flood that can come back to life by the infection forms, hit the body and it should break apart. This saves ammunition....

On the multi-player map Isolation, go to the Flood cave where the Ghost is located. Go in front of the Ghost, look up, and walk a short distance slowly. You will see a big smudge on its face, but look...

This is best done with two players. Enter the Sandtrap on the Forge. Try to get as many pre-placed fusion coils and plasma batteries before you start. Place as many fusion coils and plasma batteries a...

Go to your Dashboard. Change your language to the second option from the bottom. Start Halo 3. Invite four other friends that are about the same rank as you. Also have them change their language to th...

At the beginning of the level, grab the skull on top of the large pipe near the ceiling before you pick up any weapons. This is easier in Co-op mode. Press RT repeatedly. This will cause Master Chief ...

To easily destroy a Wraith and save time and ammunition, go to the back side. Aim at the little circle in the back. With about five to ten shots it will be destroyed....

Go to your Dashboard. Change your language to the second option from the bottom. Start Halo 3. Invite four other friends that are about the same rank as you. Also have them change their language to th...

in multi-player or system link mode, when you kill someone slash their dead body with the Energy Sword. More grenades come out of it....

In Forge mode get a Spartan laser. Charge it until its almost about to fire. Before you fire, turn into the Monitor. Fly around until you get a target. Before you turn back into a human, hold RT to fi...

Note: The following can only be done in a local match or replay. To do the at ease position you must hold LB + RB for at least three seconds and press Left. If done correctly, your weapon will not be ...

If your shields are down in Forge mode, press Up and they will recharge....

If you are a Spartan or Elite and your ammunition is low and it takes a long time to reload, press Up again while reloading to instantly reload....

To melee faster, press B then press Y(2), B rapidly. It will hit again immediately....

Find the stairs with out the fences. All you have to do to get under them is walk forward while clicking the analog stick down repeatedly to walk underneath them. This would be best to do during an od...

Go to Forge, and if anyone sticks you with a plasma or spike grenade turn into the oracle(monitor). Then go up to them and turn back into you person and it will explode. P.S. This works best with plas...

If you make fusion coils and put street cones in front of the coils, and stand in front of them. If you at the right angle and you blow up the coils, a cone will fly at you and kill you. It says you h...

If someone has a gravity hammer and someone else has a rocket launcher. Shoot the rocket at the person with the gravity hammer. If the person with the gravity hammer swings it(RT) at the right time it...

It has been confirmed that to get the IWHBYD Skull you don't need ALL of those notes, all you need is 4654534. You HAVE to kill the flood and the Prophet of Truth before you do this. If you mess up ju...

Blind Skull: You start out on Sierra 177 and you go along the path way until you come across a river.Then you will climb over some sort of log. You will se a series of grunts and a couple Brutes. Trai...

You need to press more than RB and LB. You need to press RB, LB, DOWN(on D-PAD), A BUTTON and click the left analog stick all at once for about 3 to 5 seconds. May take a couple tries....

In Forge make any equiptment, trip mine the the best one to do it with. Delete all of that item, then place at least two in one place. Set respawn time for that item at 10 seconds. While you on this m...

Pause and go to settings. Turn the horizontal turn to the highest it can go to. Pick up a machine gun or any other fast shooting gun. Keep holding left on the right contol stick and keep spining and h...

In Forge select the map isolation then locate a small slanted structure above ground and there should be a hole on the wall. Gather up all the fusion coils, plasma batteries and power cores then throw...

At the end of the game at the end credits just wait until they are over and then the last movie will play and this will show that the master chief is in fact alive!!!! So rejoice....

On Tsavo highway go underneath the first highway you come to (after going through the first blue barrier) and go towards the pipeline. Look for a massive beam coming down from the pipeline and try to ...

If you are running low on ammunition you can go over to a marine who has a different weapon than you and switch it for a different one. I know that some of you might not want a different weapon but yo...

A awesome combo is a plasma pistol equiped with a magmum charge up the plasma pistol and shoot it then rapidly shoot the magmum they shud be dead very quickly....

Find an AA Wraith (for example, the one on the mission "The Covenant"). Jump on top (Don't board it), then melee it until the hatch breaks off. Melee the Brute's helmet. Line up until it say...

A good combo to use in Matchmaking or and Custom Games, some good combos are the Plasma Rifle and SMG or Spiker. And another one is Spiker and Smg. Also if you shoot someone with the Plasma Rifle 3 or...

At the beginning of the mission in Halo. Just turn around 180 degrees and go towards the crashed pelican and you will find different guns. If you don't want new guns then leave them....

When your on the second level go till the water is close to you jump in it you won't die keep going till you are by the enemies jump up and keep shooting and then go back and try to jump out NOTE:(i f...

The best way and the way I did it to get the Achivements were you need to get a sertant amount of points for axample Ranger or Demon achivement. All you need is to activate all the gold skulls esept B...

When you go and fight all the wraiths and choppers, just beat the back of the wraith until both brutes come out. Then take the wraith and finish the level. You might want to wait and make the wraith y...

This will require some pretty good skill and waiting. First, make sure you download 'Sandstorm' edited by me, and launch in a forge gametype. P.S This was based on Sandtrap. When launched, go to the s...

Before u take that big jump to finish the game stop. And get out (if playing 1 player dont let the gunner see past that rock or he will kill him). And then once u get there the grunt will say some thi...

Nearly at the end of the last mission, there will be a grunt behind a rock to your right go and do not kill him till after he talks. Be sure you do not park in front of the rock because the Arbiter wi...

At the point when you are fighting the 2 Scarab tanks, stay in a Hornet thoughout the whole entire battle. After you have beaten every enemy, look directly at the tower and go up the left side of the ...

In the Mission "Halo," Go to the place where you find the last terminal. Directly opposite of the terminal is a pit. Part of the way across, there is a beam. Grenade jump to it, then get to ...

First start the stage THE PIT on forge. Buy a generator, use a spartan laser to shoot the top of the generator off. But first set the generator to appear back in 10 seconds. Buy a mongoose also set it...

Start the stage THE PIt on forge. Buy a flamethrower. This must be done with 2 players. Face the other player then tap the fire button. When the falem touches him he must trun to the oracle and back v...

First start the stage THE PIT on forge, go to a "L" shaped corner, buy a generator and put it at the "L" shaped corner. Put it to return in 10 seconds, then use a spartan laser to ...

Load up Assembly in forge mode and go into monitor mode (press up on the d-pad). There are two "arms" attatched to the centre building. In monitor mode, fly up and into the small opening at ...

Load up Orbital in forge mode, find the open area (the place with the two traffic cones and a pit you can fall down). In monitor mode (press up on the d-pad), fly all the way to the top and the skull ...

In Sandbox, fly to the heighest possible point in the map. Look around till you can see the sun (not the "red light" on one side of the map) on the horizon, inbetween two Guardian towers. Tu...

In forge mode, look for a red sign with a fish on it. It says "Fronks". Fly right up to it in monitor mode, then turn right. You should find an air vent. Fly over to it, and the skull should...

In forge mode, fly to the top of the room in monitor mode. Go the platform with the sword on it. It’s shaped like a letter c or pacman. Turn right and fly over to the open room. Place a grav lift just...

In forge mode, fly around the map until you find the corridor with the overshield powerup (red). Go to the right side of the power-up (facing the power-up from the middle of the map) and stop just pas...

On the mission Sierra 117 get to rally point alpha continue the mission until the passage gets narrow then turn left and jump on the rocks continue along the ledge look at the wall there are cavemen!...

On the level crows nest get to where the second checkpoint is kill all the bad guys go past the door keep going to the end there is a funny argument....

You have to play Forge on Construct. First, go to the pink lift (either one). Then, turn into the monitor and go down the lift to the bottom using the turbo (LT). Once at the bottom, you should see a ...

When in the crows nest level, when in the long tunnel go the wrong way and listen to the dialogue. This changes depending on difficulty....

Go on forge get a tank drive it into a elephant turn into a robot grab the tank and turn it upside down the elephant will be upside down aswell go to flip the elephant and see what it says....

In the map Snowbound, go towards the active camo with a sniper riffle. Next look down at the ground by the active camo and you will see a little brown dot. Scope in on it and you will see what its loo...

This one is easy, you just need, a cloaking (of any sort, you know the power up or the one that brutes carry,) and a ghost. Get the cloaking on and jump in the ghost, it will appear as if the ghost we...

Sticky grenade your monitor ally while he is human. Have him quickly change to Monitor The grenade will not detonate. Go near anyone and change back to human then back to monitor very fast. The grenad...

Use the following trick to get an unlimited Spartan laser on last level "Halo". Play through the level until you meet up with Sergeant Johnson. Shoot him until he falls down and drops the Sp...

To make objects to float in Forge mode, make a tower out of two way nodes and crates. Then, delete everything except the teleporter under what you want to float. Make sure the tower ends with a two wa...

To leave the level boundary, you must be at the ocean barrier (the side with the ocean). Once there, you and your friend must get a Mongoose and a Wraith. Have your friend drive the Mongoose into the ...

On the map Last Stand (Zanzibar) you can float for a little while above the ground. To do this, go into the Forge lobby. Press X and adjust the player movement settings as follows: Speed -200% to 300%...

In Forge mode, get as high as you can as the Monitor. Spawn a teleporter on the ground. Then, hug any wall still as being as high as you can and spawn another teleporter. If the teleporter beneath you...

Use the following trick to get an unlimited Spartan laser on last level "Halo". Play through the level until you meet up with Sergeant Johnson. Shoot him until he falls down and drops the Sp...

Enter Forge mode on any level where you can place both fusion coils and propane tanks (High Ground and Last Resort recommended). Place as many fusion coils as possible. Turn their run time minimum to ...

You need to have a partner and be in Forge mode. Have a friend or yourself host a game. Have the person who is the host be a player and have the person who is not the host play as the Monitor. Spawn a...

You must be down by the water. Once there, you and your friend must get a Mongoose and a Wraith. Have your friend drive the Mongoose into the barrier. Keep accelerating and have somebody get in the Wr...

When the ship comes down to land right before u get the tank get underneath the dropping platform with the warthog. Just jump up and u start floating upwards. Sometimes u can get the platform to stop ...

Go to Forge with two or more peopl, spawn any weapon. Have anyone pick the weapon up but at the same time have someone as the oracle pick the weapon up. The human players arms should be all screwed up...

Just after you activate the second tower you have to walk out and get in either a Mongoose, Warthog, or Tank. Before you leave in one of those 3, go to the elite ship where Oracal goes into. You can j...

This can only be done in Forge Mode. Take the map Snowbound for example. Spawn every Trip Mine right on top of each other. Next press X on a Trip Mine and than press X again. Afater you have done that...

This can only be done with a multiplayer on forge. When you are at a map have the person who is not the party leader press X to go to forge menu. Next the person who is not the leader must spawn a veh...

Everyone says tripmines make the biggest explosions, well thats wrong. First have someone get in a warthog (do this on santrap) then another person spawns a bunch of power drainers, set them to instan...

In high ground in forge find a turret and tell the other player too grab the turret, then turn in to the monitor and grab the turret. You will find the other player flying with the turret....

On "The Ark" when you get to the scarab, get a chopper. After that go to where you would after the scarab in the chopper and at the top there is a ledge. Go of of the edge with the chopper a...

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