Infinite Mario AI Competition
A long time ago, I made a Super Maro Bros clone with random levels called Infinite Mario Bros, which I released as public domain after a while.
Now recently, an AI competition started where the goal was to write a bot for that game. A guy named Robin Baumgarten made a really neat looking one and sent me a link to a youtube vid.
Check it out: http://www.youtube.com/watch?v=DlkMs4ZHHr8
Awesomesauce.