This was really cool! I loved the way you implemented the chain attack. Initially I was kind of treating it like a little puzzle to match the hits so that I could kill a whole screen at the same time, but the bosses making you really focus on using it was cool, and you had some pretty inspired ways of implementing that. It was pretty tough to dodge all the bullets at the same time though, although I imagine that's part of the difficulty.
Thanks for uploading!