I liked the concept very much and I think I didn't see it before. So congratulation on creating something unique and fun :)
I couldn't pass the second level because of either a bug or my lack of understanding of a feature in the game. I kept going to the tunnels and dying immediately so I'm not sure if it is my mistake because I should know where the wall of the tunnel will be. Anyway, I think it has great potential :)
Good job :)