I really liked the colorful animal aesthetic, the sounds and the concept. Just hearing the animal sounds with drums behind them brought a smile to my face.
The menu itself was more fun for me then the game. I spent about 3 minutes messing around on the menu before trying out the actual game. In game, I would try and get a groove, but ultimately it would get to the end and then loop a partially formed out of time beat.
I think it would be helpful to have the input associated with each press shown on the color coming at you or some other way to help the player remember the inputs associated with them.