Hey, thanks a lot for the feedback! Glad you enjoyed at least a portion of it!
I'm pretty sure we fell into the classic trap of "the testers getting too good at their own game", and for better or worse, I think the first half of the first boss is the hardest segment of the game, some patterns of the wall of bullets, and the walking-while-shooting, are way harder than they had to be. Mashing bullets on that mf and hoping for some of the more lenient patterns is probably the way to go if you (or anyone else) is having trouble, his second phase is a lot more reasonable IMO, hahaha.