To everybody: You can restart by pressing r
(Which by the way should be in the description)
I don't know. It has potential, but it feels so annoying that it's so hard to get the timing precisely right when you have figured out what to do. And I think that pinpoints a problem. It feels like a thinking game, but it's more of a timing game. It's not suited for a pixel/frame perfect input game.
Also, you should add some meny for level choices and such.