Really cool game - loved the art, though it would have been nice to have some variation in the tilesets. Controls seemed nice and responsive, and the platforming elements were tight and challenging. I think that the difficulty curve might need to be altered though as it very quickly became rage inducing, even before collecting many power ups. Also, in the early game there's not a lot to do apart from run/jump/glide... it would have been nice to attack something!