Psychonauts was my absolute favorite game of the last console generation. This is one of the funniest games ever made, and also an incredibly enjoyable platformer. Dive into the minds of others to explore several very diverse and incredible level designs.
Psychonauts was also released on the Xbox and Playstation 2, but the PC version is the best because it is the only version that has Widescreen support. Plus, this version doesn't have any stupid DRM that forces you to put in Disc 1 every single time you want to play! If you have a decent video card, even as old as the ATi Radeon 9600XT from 2003, you should be able to play this at a high resolution with a great framerate.
I love Psychonauts, enough that I will buy this DRM-free, no disc hassle release to support the game once more. At $10, you really owe it to yourself to pick up Psychonauts.