Crayon Physics Deluxe trailer 2 from Petri Purho on Vimeo.

I have seen few physics experiments and engines. But this game is really great. Not only its great programatically, its aesthetic quality is super nice. And I love that the goal of the game is not to beat the levels fast, but to find many different ways to reach the goal. And since you can draw almost anything, man I wonder how many possibilities are there. And you should know that this game was developed by one person. When I get a tablet I will definitely buy this game.