The switching mechanic was used really well, in different kinds of puzzles, and was really fun to play with. One of the most innovative level designs that I have seen in this jam. Here are a few things that can be improved: importing pixel art sprites with point (no filter) filter to remove the blurry look, exporting to web (HTML5) is also really easy from Unity, and it will make your game accessible to everyone. Good luck in future game jams!