I just realized a thread was made for this but it was a few months ago but I'm bringing it back!
XD So I got introduced to this game a few weeks back. I even discovered some of my own friends play it
Transformice has got to be one of the funniest multiplayer games I've ever played.
The game is simple - You are a mouse, you grab the cheese and run back to you're hole. But with the obstacles in the way it's not as easy as it seems XD