Thank you for playing! I had a lot of fun thinking about cheat codes for the game!
The cheat's name appears for a moment on the bottom right of the screen when it's first activated. The score display also changes to include a letter C and any activated cheat codes appear on the game over prompt.
I agree on the music. It's my first time actually trying to make music, so I feel I learned a lot, but I also think it could be improved.
More cutscenes could be interesting, but would need to be done in a way that doesn't interrupt gameplay too much. Probably a smaller image on a corner and making the cutscene transparent if the yarn ball approaches.
Thank you for the feedback!