Simple, fun and hard... That's what we need here +)
For some reason I want to try again and again, even when I know I screwed already and dont have time - still trying to "get there" and then trying again in next game. That's... interesting, for such small concept. I thing this is not just becouse of it's simplisity, but also because visual is good and simple, and controls are feels good too - you just focusing on retying and nothing is holding you back from it.
Very well made!