Not bad, however there are a few things that would need polishing.

Waves sometimes are too hard, without visible empty space.
I'm not sure if ammo packs are random, but I couldn't find any a few times.
Also rockets could be more intelligent and less spammy.
It turned out that the best strategy is to shoot everything you have almost instantly, with small breaks = 50% boss hp, a few seconds after start.

Keep up the good work

Ps I couldn't make it to the end :(

I really enjoyed the concept and the visuals! The music is pretty great, and it makes all the rhythmic aspect of the game really fantastic!

It's very hard though. Some patterns seems unavoidable, but that's still okay. My biggest grief was the aiming. I just couldn't hit that boss, and eventually just shot randomly! (spoiler: it wasn't a winning strategy either)

The game is still fun, and provide a great musical experience. Congrats!

A bullet hell mixed with a rhythm game is a really cool idea, and I liked the implementation of maneuvering around the source of everything. I really like look of a black background with bright colors to easily differentiate everything.

One of the bullet patterns was seemingly impossible to avoid. I didn't quite understand how the bullets worked, so I just shot randomly until enough ricochet hit the boss to beat it.

Whow! Such a great thing! This bullet hell game is probably the most original I've seen in this game jam. I really like that the supply for health and amo only stays for a short amount of time, forcing me to be constantly on the move. The blocking of the rings indirectly create some very interesting bullet patterns and there were definitely space to dodge bullets so I really appreciate that. However, there are certain elements in the games that makes me feel a bit unfair. First, one bullet pattern is impossible to dodge. 

I die a little inside every time this comes up because it feels like a forced hit except if I were on the middle right of the screen. Second,  I can't really accept that the precision of my gun is so low that its target is always offset to the left of the boss. Timing the shoot so that the bullet comes to contact with the ring I want is very finicky, and in the heat of the fight I usually leave it to my luck.  I understand that it makes hitting more challenging but it'd make more sense to me if the rings apply negative/positive attraction forces and bend the trajectory of my bullets - still very challenging but more intuitive and fairer: I don't have a faulty gun.

Some more smaller feedback: Sometimes the amo and health pack dont appear on the beat, Idk if that's intended. The avatar stops following me if the mouse position is too far to the left or right of the screen - only the center square registers mouse position it seems, which leads to unresponsive controls at times. This last bit is nitpicking but I know you could do better with the end/restart screen. That would significantly increase the immersion ;D.

All in all, a very innovative bullet hell. Well done!

Since you played my game I wanted to come give this a shot, but I'm away from my windows box at the moment. Can I ask what engine/framework you used to build this game? It definitely looks neat.

It's a good concept but....the difficulty, the level design, the music, the lag...This game need more work.

After following the creation of this project on Twitch, I am reassured to see that the original difficulty has been revised downward, since I was able to play and win ! Yeah !  ^_^ Very catchy, the "particles" fuse everywhere, it is very successful. Congratulations