Very nice and simple! I really liked the concept and it worked very well in the game. I liked how the level changed as well after 10 points, if I remember correctly. It also took me a few tries to really get the hang of it but after I really enjoyed playing this game.
Overall a very fun game with some great music :D
I don't know if you've heard of Game Development World Championship before (gdwc2019) but it's a competition for indie game developers where they can submit their games and it's free! It's great if you want some more visibility for the game and it only takes a couple of minutes to join :)