It looks good and the idea itself is really nice, but I think you did not leave a whole lot of reaction time for the player.
Also, the game is too punishing in my opinion. Losing a levels means restarting everything, and it takes a few clicks to get back to the game instead of just throwing me at the start of the level again, In games where you get punished for every bad move you should consider making the death loop faster or else it gets frustrating.