I beat it! Really solid bullet hell game, so many good patterns that forced me to assess risk and think about whether to micro or macrododge.
The bullet colors were chosen well and didn't blend in the background (I think!). The only thing that I found hard to react to was the big laser beam the final boss shoots out during its final phase. The red particles that precede it kind of blend in the background a bit, so I really didn't even notice anything was telegraphing it before getting hit by it a couple of times. I would assume it would be really hard for people who can't see the color red too well. I also think the base movement speed could have been increased just very very slightly to make macrododging less risky and more viable, could spice up the gameplay that way.
But I had fun, the game was challenging and very enjoyable and there was so much elegance to so many of the patterns in here.
I especially liked the pixelwork, so pretty to look at. I appreciate all of the standard danmaku sensibilities this game considers, from basic stuff like having a really small hurtbox to having easy to read emitter locations and easy to read pathways to dodge or lure bullets.