Splendid music / sfx.
I couldn't go very far because of performance issues in the browser. What I do for my games, is that I allow the player to enable or disable shaders. On HTML5 export, I disable shaders by default & the user can enable them if he desires.
I also had some issues with controls. Sometimes the keyboard keys were not registering at all.
I had to refresh the webpage.

Good music, and interesting gameplay loop, but it is very easy to lose in the later levels, since when you stop, enemies is swarming you and drop your HP to zero almost immediately

Had some performance issues that made it a bit tough, but I love the idea of it. Also kinda wishing it was easier to get up to max speed - not that it's particularly hard, I just kept smacking into the wall while gathering speed lol

Blast of a not-bullet-hell-but-enemy-hell. I find myself wanting to bank turns while keeping speed to bonk glorps that I just nearly miss. It’s so satisfying to land a hit though, well done!