Tom Clancy's Splinter Cell Chaos Theory

In the Profile Menu Enter: COOPA22COOL to unlock all levels.

On the first level (The Lighthouse), you can hear the orchestral music from the Hotel level of Rainbow Six 3: Black Arrow in one of the tents. It is the tent with the guard inside.

Cameras that do not use thermographic vision can be be fooled by shooting out all the ambient and direct light sources to darken the area. As long as the light meter is completely dark, these normal cameras cannot see your spy.

Hold the Left Trigger while grabbing an enemy to choke hold him, then immediately put his body on your spy's shoulder for a fireman's carry.

As a spy go in the main hall and go towards the computer hack that has the lasers covering it. Climb up the nearby ladder to get to the top floor and there should be a box close by. Jump on the rail and if you look real close there is a steel pipe that is next to the rail. Jump on it and climb to the top and you have just activated the disco lights. Jump down and head to the main corridor that connects all 3 rooms and there are disco lights, confetti, and corny music playing.

Laser mic and record (by zooming in with the EEV) the conversation on the third floor when a merc is assigned to the penthouse by an executive (the room is first one on your right when you get off the elevators on the third floor). Aim the EEV (binoculars) at the glass. This is the only way to get credit for listening to the conversation.

Speak to the old man multiple times until the conversation clears and he walks to the area with two of the five tubes. With only three tubes to watch over, Fisher can hit the switch on the tubes as the lights above each tube go from green to orange. Hit the switch before they turn red and overheat to get past this part.

In order to find mines in the camp mission, turn on the thermal vision.

To make yourself invincible in co op mode (lasts just for the level), use the following trick. Have a friend to hack any door/computer etc. that is near a medkit. Then, shoot a a sticky shocker at your friend (friendly fire must be on). Your friend should fall on the ground. The person that is fainted must not get revived by his or her friend. The person who is dead, if close enough, should see an action that reads "Use Medkit". Select that option, and that person will be invincible and invisible. Note: This most likely will glitch if you do specific things, such as standing behind a door while someone kicks it down. Note: You also may want to reload your gun beforehand, as while invincible you cannot reload. However you can still use melee moves. Note: This is permanent for the level. Once you complete the level or start a new one, it will return to normal.

As a merc in vs. mode have Frages and a Cam. Net. First, be by a health box but far enough away where it doesn't say Health. Second, get a Frag out and charge it fully up. Open your inventory (LS) and walk up to the health box (with your inventory opened) until it say Health and then get your Cam. Net. out with the Left Trigger still held, close your inventory and walk away from it. You should have a fully charge Cam. Net. Charge or Beserk a spy. Hit A to get you to get into choke position on the spy. Instead of hitting the A button to kill the spy release the Left Trigger and you will go into the Cam. Net. Hit the B button to get out and hit the A button to Beserk your way to the normal screen and the spy will be trapped holding his hands up to his throut and will be stuck there. The spies can have a chance geting out by a 5% chance. This will only work if Beserk is on to return to normal screen or make you fiend charge you. Most of the time making your partern charge you will work. All glitches and this one will all work on the Xbox 360, too.