Really fun! I'll admit I'm pretty bad at bullet-hell style games, so I found it pretty tough! The shear volume of my own shots made it hard for me to see incoming attacks. I still made it quite a few rounds in though, thanks to the powerful attacks. I eventually lost when I accidentally made my deck setup worse, whoops!
The graphics look nice and the audio is good as well! It's a well made game that's fun to play. I'd love a story or other goal to keep me wanting to push further, but as it stands it's still a lot of fun. Great work!