Hey! I really like how the concept is simple and easy to pick up. The only thing I struggled with was remembering where the boxes go. It would be good to put some kind of sign/arrow etc. with a number by the door (or something else if it's too obvious). That way players don't have to keep referencing the instructions outside the game. The music tones were a good choice for the vibe IMO. Would be cool to see some progression elements implemented (like some kind of upgrade or something to work towards) as the game did not seem to have anything to work towards outside of not losing stars.
It seems like it might be your first submission, so great work on your project! Keep up the development journey!