While clicking around on Wikipedia one can find some strange things. Like the Max Rebo Band. Or that the leet speak page mentions a 1337 cheat for Psychonauts.
So what does that mean? Execute the cheat, and the subtitles will look 50//3th1ng l1k3 t|-|15. In addition the character names are replaced with those who worked on the game. Oleander, for example, turns into "Schafer." That's minutes of fun right there! So how do you activate it? Simply press this button combination for the Xbox version: "White," "A," "Left analog stick," "White," "White," "B."
Do these codes work?
1337:
E, Spacebar, Tab, E, E, X
Invulnerable:
X, E, X, X, F, Q
I havent got round to trying it, but its possible that replacing the files in the english folder with those from the xbox nonsense folder will turn on the leet speak for the pc version.
L33t 1
L33t 2
L33t 3