Really excellent game! Fun and creative puzzle concept and very on-theme. There's a lot you could do with this idea if you decide to pursue it further. I found the first level to be the hardest of all of them, not because the puzzle was the hardest to solve using the mechanic, but because it was difficult to figure out the mechanic. You might like that added dimension of difficulty -- and it does feel rewarding if you get the handle on how it works -- but some might be frustrated and want a bit more description of how it works. Great job!