The hitstop actually works well in this one (seriously, you nailed it)! Nice pitch shifting as the combo meter fills. There is a lot of good feed back on hit in general. I like how you are always progressing forwards with points and unlocks.
Things to critique:
The movement of the ball is fun, but things feel a bit too floaty and light. I can't really put my finger on it...but I feel with a little tweaking you could get it feeling perfect! (same goes for the camera as people have mentioned).
The purple circle hit boxes that appear are kind of hard to pay attention too. I feel like they are almost unnecessary with the missiles already being a bit hard to track.
Overall a fun experience, great work!