Pretty cool! There seems to be a little bit of a bug with the Restart button though. On the 2nd level for example. If I miss the first try, then click the Restart button, the ball is already falling, it's already started. So you have to like click Restart then Pause REALLY FAST! Then you can move the block. [EDIT] Ohhhh or you can pause, then Restart.
I really liked this, but tbh could not figure out lv6 D:
Also check out this one :P