Really cool core idea. Trying to essentially balance two separate puzzles at once adds a layer of depth that was fun to mess around with. My biggest feedback would be that the block puzzle in the top right is a bit finicky, as it will ignore your input if your cursor drags even a little out of the box. I also wasn't sure what to do at first so I really appreciate the flashing red indicator around that puzzle when you fail, that was a great addition. Great job!