Air: 2 player competitive platformer (requires two players)

As I said in my introduction post, I favor rapid, <= 7 day prototypes. To me, if gameplay isn't fun by then, it's not an idea worth pursuing (I know this is a huge generalization, but hey it keeps me motivated). So this weekend, I created a co-op / competitive platformer, based off a post made by Noel Berry over on the flashpunk forums (some of the art is his). I've had fun playing it with my friends, but I'm not really sure if the idea is worth pursuing (I'm the worst judge of my own games). So, if you guys could play it a little bit and tell me what you think, that would be awesome. There are instructions in the game.

Play it here.

P.S: It needs a new name. I have literally no ideas.