I just say wow! That is innovative in my eyes! First I did not have a clue what to do, but when I figured it out, Im just mindblown! Its a really clever idea which fits the theme perfectly! Its a nice difficulty when you play, not to easy, not too hard! You need to use your brain which I also like and always think a step ahead to make everything great! In my opinion you have really succeeded here!
Great job and keep it up my friend! I can't wait too see this develop further!