Spectacular little game. Congrats on finishing this in 48 hours!
The premise for your game is very clear, the puzzles teach the player the rules well and then challenge that understanding. The variety of tiles feels good, too. Perfect for a jam game. I even got my spouse to play it and she called it "very satisfying". She's a tough one to please when it comes to jam games.
As others have mentioned, a bit of sound track would have elevated this even further, but a little volume control or sound testing would have helped. The star sounds are just so much louder than the footsteps or other sfx.
Well done. Keep making games!