In terms of sheer playability this game feels plain awesome to play! The screen shake makes every hit feel so satisfying, but I have to say that I genuinely still have no idea why I died in any of my attempts. I don't think I got hit by any enemy bullets? But I genuinely couldn't see them since my eyes would just naturally gravitate towards all the enemies and the player, the screen shake doesn't help either despite making the game feel and look awesome. It just tends to get a lot when the game really gets going so it's hard to focus.
Maybe try having enemies shoot less bullets but having the bullets be larger? Idk that's just a random suggestion it might not fit the pace you want for the game.
BUT THAT STILL DOESN'T STOP THIS GAME FROM FEELING SO COOOOL TO PLAY