Derrick Williams' first dunk in the 2012 NBA Slam Dunk Contest was little more than a windmill over a motorcycle he drove out to some old school California funk. His second dunk was a huge improvement on the first, and not just because it involved Ricky Rubio.

For the second dunk, Williams came from the corner, caught an oop off the side of the backboard from Rubio, and whirled around for a thunderous 360.

In a second round that included Jeremy Evans dunking two balls at once, Paul George turning the lights out for a glow-in-the-dunk, and Chase Budinger doing a mere windmill, Williams definitely upped his game to rival the two more creative competitors. But Williams is probably no better than second in the minds of the fans voting at the moment, so he'll need another good dunk in the third round to have a chance to win.

For all your 2012 Slam Dunk Contest needs, be sure to visit this StoryStream.