Psychonauts Cheats - Xbox

All Psi powers
Hold [L] + [R] and quickly press [B]x2, [Y], [White], click [Left Analog-stick], press [Y] during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

All items
Hold [L] + [R] and quickly click [Right Analog-stick], press [B], [White]x2, click [Left Analog-stick], press [Y] during game play. The phrase "You cheated" will be spoken to confirm correct code entry. Note: This does not unlock the Psi-ball Colorizer or Dream Fluffs.

Maximum rank and all Psi powers
Hold [L] + [R] and quickly click [Left Analog-stick], [Right Analog-stick], [Left Analog-stick], press [White], [B], [White] during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

Full lives
Hold [L] + [R] and quickly click [Left Analog-stick], press [White]x2, [B], [A], click [Right Analog-stick] during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

Full ammunition
Hold [L] + [R] and quickly click [Right Analog-stick], press [A], click [Left Analog-stick](2), press [Y], [B] during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

Invincibility
Hold [L] + [R] and quickly press [B], [White], [B]x2, [Y], [Black] during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

Full Arrowheads
Hold [L] + [R] and quickly press [A], click [Right Analog-stick](2), press [White], [Y], [X] during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

New text
Hold [L] + [R] and quickly press [White], [A], click [Left Analog-stick], press [White]x2, [B] during game play. The phrase "You cheated" will be spoken to confirm correct code entry. This code replaces the characters' names with developer names, shows captions for all the dialogue, and changes the text to numbers and symbols.

Bonus movie
Reach Psi Cadet rank 100 by collecting all Psi-Orbs, Psi-Cards, Cobwebs, Figments, Emotional Baggage, and scavenger hunt items.

Defeating Jasper
To defeat Jasper in Gloria's theater, use Pyrokinesis, Levitation, and whatever else desired. Use your Levitation Ball to float up the top where the lights are located. Jump and use your Levitation Float above the music note to get there. Use Pyrokinesis to light the candles and make Jasper dizzy. Go down and punch him until he is no longer dizzy. Repeat this to kill him.

Defeating the Lungfish
To defeat the Lungfish for the first and second stages, whenever he blows out the yellow boxes, hit the one he starts to suck in. To win in the final stage, stand by a clam. When he starts swinging the thing on his head, punch the clam shell, then punch him.

To defeat the Boss in Lungfishopolis, whenever he shoots the beam thing at you activate the shield to make it go back at him.

Black Velvetopia: Easy completion
When you are looking for the cards, defeat the wrestlers and obtain the cards (in any order). Once you have three of the cards, make sure you have your Levitation power maxed out by ranking up. Once you have the high jump levitation, go up to the top of the card tower where Edgar is located. Walk into the cards Edgar is working on so that they fly away. Then, activate your levitation power and go to the edge of the stable cards. Then, jump. You should activate the final Boss fight of El'Odio, and complete the level. This will save about fifteen minutes of running and jumping in the level.

Glitch: Use Levitation without having it equipped
Have three Psi-powers equipped, none of them being Levitation. Then, double-jump, hold [L] to glide, then press [A] while gliding to grab a levitation ball. It will just as if you are using it normally. Note: You must have completed "Milla's Dance Party" in order for this to work.