This is amazing! It feels like a complete game. Very polished sprites, and awesome music and sfx!
This is just a personal gripe, but I don't like using arrow keys.
The first boss was very epic, but I think it was a lot easier than the rest of the level, especially for how long the fight was.
Unfortunately, I had to stop playing on the second level because I was getting tired of holding X for so long. I can handle pressing lots of keys rapidly, but when there's very little reason to let go of a key/button, it gets bothersome imo. I know the charge attack is a thing, but that's just an extra and you still will be holding X the vast majority of the time regardless. An accessibility setting that reverts your firing state to "hold to stop shooting" or maybe just toggle shooting, would be hugely appreciated if you make a post-jam version.