Braid is perhaps one of the most important games of all time, and you absolutely must play it. If you have an Xbox 360, download it of XBLA now. If you can’t afford the $15 worth of MS Points, then just download the demo. (But believe me, it’s worth the money.) If you don’t have an Xbox 360, buy one. You must play this game.
Seriously, stop reading this and go play the game already.