Looking for a particular kind of game ...

[Fragony]

I also own Psychonauts. Considering who it's made by, I couldn't not own it. Pretty sure I'd like it, never got around to playing it.

Ow? Whatever the hell you are doing, there are better things to do. Like playing Psychonauts for example. One of these one of a kinds.

[FesterShinetop]

Yes, I totally agree with Fragony. Forget about Mirror's Edge and go play Psychonauts (I automatically assumed you had allready played that). It's great (though I got stuck in the end and never actually finished it... one day I will... one day I tell ya!!!)

[Whacker]

I don't know how well this would meet all the criteria, but I absolutely loved the Tenchu games. My friend and I both played the crap out of 1 (RODE GRODAH EGGSPECKT MUCH UV YUU!) and eventually 2. I bought 3 for the PS2, which I would recommend. They aren't necessarily very modern looking, but they are short, single player, and a lot of fun.

[Jolt]

Agreed. 6-player Serious Sam 1 was one of the most fun I had.

This made me reinstall the game. I had forgot how much fun Cooperative mode was. :D

[frogbeastegg]

Alright, alright, I'll play Psychonauts first.

Tenchu ... I have the xbox 360 one, Tenchu Z. Another disc on the mountain which I haven't had time for yet. Kind of saving that one for when I'm in the mood for a game with lots of replaying to gather unlockables.