I thoroughly enjoyed playing this game! The art, music, and sound effects are all excellent and create a fantastic ambience.
The gameplay is very creative. It's a simple concept but deceptively hard and oddly addicting. I played for far longer than I had intended.
I'd love to see an optional hint when failing a day. I ended up replaying some days several times and using trial-and-error. It would have been helpful to get a hint about what I might have missed after trying and failing three or four times.