Thank you very much for the kind words!
Yeah, difficulty is the big problem. Believe it or not, the game was even harder. The music was the last thing we did with the notes in the game, so we didn't have much time to test it properly and improve it.
We have already discussed after the submission ways to improve the game. Difficulty levels, animations (I want to make them better, smoother, more of them), more music. The cat had to interact with the grandmother and the environment.