I also came from your challenge thread. I want to say something different than the rest of other comments here. I will be brutally honest here. The game doesn't appeal me that much to play longer than the second stage. In my opinion it doesn't provide much value other than being the players should be very precise with your control of movement and move to the next stage. The reason I said it doesn't appeal is because the control is buggy and the movement is weird (Those are your selling point to this kind of game but it's not good.) Game design needs a lot of work. This is very subjective area and it takes a lot of iteration to get used to it. Games should be emotional, mechanics are there to deliver those emotion.