The game is a lot of fun. The gameplay is polished, the graphics are adorable and the music is very nice and fits the mood. I liked that you added Options, I rarely see them in games. Generally, UI was very friendly. The first puzzles were rather simple but I got totally stuck on the last one. Is there any smart trick how to avoid the horn or are you just supposed to be that good at platformer jumping?
Anyhow, really great job, enjoyed playing it!