This is the coolest thing google has done with their logo. Just go there and wait a sec and the game starts. This was done for Pacman's 30th birthday but when they take it down Google will be pretty lame...  

 EDIT: There is a INSERT COIN button instead of the feeling lucky button, if you insert 2 coins you can play co-op with MS.Pacman using the WASD keys.

Best Google logo ever.

Aww I was about to post this, but yea its awesome!

I was playing it earlier - it's a pretty solid version.