This was very cool! I agree with the other commenter for the most part. I couldn't survive any of the levels for any given time, but it was still fun. You should be proud!

Love your take on a bullet hell rhythm game! Also, mouse controlling to dodge has a level of intuitiveness I wish more people explored, so I'm glad that was the path you decided to take.

As for the dodging part, I'm not sure if it's just because I'm not used to bullet hells, but I think there could have been a wider range in the level of difficulty, I couldn't find a map accessible enough where I could complete them. I think the walls closing in is a reasonable consequence of getting hit, but the way it works, it reinforces itself (walls closing in makes it harder to dodge, which closes in the walls more) too strongly and once I get hit once I end up getting hit by everything. 

I liked the patterns that went with the music, and especially found it cool how dodging the yellow targeted ones to the music actually let me progress a bit further, and I feel like rewarding rhythmical movements is something cool that could be explored.

Well done, and congrats on the submission!