This game is awesome!! Absolutely full of juice! Your tutorial voice and the sound effects are hilarious. The screen shake and other vfx and art are super satisfying. The gimmick is also super neat.
I dont know if it would trivialize dodging, but I think a roll would be nice, especially considering some bullet patterns. It could just be a skill issue though!
Also, maybe have a transparent version of the barrel ui over/around the player, so I don't have to keep flicking my eyes to the bottom right, haha!