fine game
Its a nice game and a greate new idea (didnt see much games where you can run around against physical law of gravitation xD )
One thing that bothered me most:
Game starts to lagg if you look left and right and jump and so on ... but maybe it was a background program of mine ... i dont know.
For your controls:
you choose a ... not THAT good combination... my keyboard is german and there is y = z so i need to do a little acrobatic to hit the controls.
A good standardchoice would be:
space = jump
ctrl = punch
alt = flip
Anyway ... good idea ... nice game