The concept is really fun, it reminds me a bit of the oO game. Nice way to use one single button to do multiple actions, and it could work wery well on a smartphone!
The level design is proving to be a little frustrating - it's really easy to get stuck, with one wrong jump the ball often stops moving. Circles also suffers from this: enter them when you're too slow, and you won't have enough momentum to get flung forward.
I think this could become a nice full-fledged game, the concept is great - the game just needs more levels and a little more polish. Keep up with the good work!