Love your protagonist, love the song (wish it took longer to loop, pretty groovy) got so engaged I didn't even realize it's not a boss rush game until I had 40 kills.
Is there chain bubble popping? Sometimes it felt like killing one enemy in a group of bubbled enemies made them all pop, but when I tried intentionally doing it, I couldn't multi kill, so I have no clue if bug or feature. It should be a feature because its very pleasant to do.