This is a really neat idea and a very creative puzzler. I like your shader, but also, things feel really fuzzy in a way that makes it feel hard to reason about the game. Also, I found it a bit too hard. May need to better scale the difficulty curve.
Thanks for checking it out and for your feedback. The fuzzy shader (not entirely happy with it either) is a bit wonky and I definitely could have tweaked the difficulty a bit more.