Boo, crushed source!
Ok, only kidding - it's a cool demo! Though a lil' part of me thinks that crushing should be outlawed from JS1K... it's like letting all the athletes use steroids: sure it's fair, but it goes against the spirit of the game.
Hmmm, on the other hand - I _do_ think the Olympics would be way more interesting if everyone could use whatever drugs they wanted.