Simple mechanic-Plays very well. Some more impactful music and sound effects would be good (eg finishing a level.) I love the aesthetic, post-processing looks great, and even better the fact that it applies to the mouse! The UI wraps but apart from that, the UI plays a small role anyway so that's not a big deal!
I like how the player gets to set their own difficulty (in terms of the amount of bounces they do it in.) The score could maybe impact the gameplay itself though. The transitions between levels were really clean and polished, and I really like how the next level starts from where the last ended.
Overall, great game, fun and has a lot of potential!