Psychonauts Codes -

All Psi powers:
Hold + and quickly press (x2), , , click , press during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

Maximum rank and all Psi powers:
Hold + and quickly click , , , press , , during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

Full lives:
Hold + and quickly click , press (x2), , , click during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

Full ammunition:
Hold + and quickly click , press , click (x2), press , during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

Invincibility:
Hold + and quickly press , , (x2), , during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

Full Arrowheads:
Hold + and quickly press , click (x2), press , , during game play. The phrase "You cheated" will be spoken to confirm correct code entry.

All items:
Hold + and quickly click , press , (x2), click , press during game play. The phrase "You cheated" will be spoken to confirm correct code entry. REMEMBER: This does not unlock the Psi-ball Colorizer or Dream Fluffs.

New text:
Hold + and quickly press , , click , press (x2), 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.