The menu and UI are clean.
I like the indicator for the bounces. Maybe you should add a challenge mode where the indicator is turned off. That would be fun and interesting.
Seeing the projectile bounces everywhere is satisfying, especially with the camera following it.
The moving platforms really adds up the difficulty. I really appreciate it, since without them, the game would be a little bit too trivial, as in you can just trial and error to see which path leads to the goal. Additionally, the parts where you have to shoot twice are also interesting. It makes it so you can't just guess on where to shoot, but actually have to think it through.
Music is funky. I like it. Though the sound effects are a little bit loud for me, especially for the portals. I think it's a good idea to add a volume slider.