Jeez, it surprised me how good this idea was. Had a lot of fun in predicting i was doing something and then actually seeing the trajectory as i envisioned it (or maybe being completely wrong). Really original, really creative, loved it.
One piece of criticism, i dont like that you can go to the next level after failing (and there is apparently no way of going back). Sometimes i go to the next level accidentaly without havin properly executed the level and it feels kind of bad.