Okay, so before all u Psychonauts lovers condemn me to hell, listing first.
I think Psychonauts is probably one of the greatest comedy platforms of all time. The characters are amazing, The story is goofy and silly, the soundtrack is F**king amazing and the graphics, while dated, are still pretty impressive. The game is a great example of an amazing classic video game.
now for the bad :D:
The game has aged like ♥♥♥♥, gameplay wise. The controls are clunky as f**k, this really doesn't help when trying to platform through some of the amazing level designs. Also speaking of Level Design, some levels are absolutely amazing (milk-man being a stand-out) but then their are levels that just feel so empty. Also the mouse is awful (at times it pans right behind the scenery) and the glitches in the game, random crashes, are just F**king irritating.
Finally Verdict: Psychonauts was a masterpiece, and with all respect is. But if you are a modem gamer and are trying to get in to the platform genre i can not recommend this game. Go back to playing Mark Of The Ninja or super-meat boy.
Yet for them old-school gamers Psychonauts is a most have. :D