Super pretty and visually pleasing. I liked the attacks the bosses made and the switching between blue and red state was well made. I wasn't quite sure if I was hitting the boss or not though. Super fun touch with the story interaction with the player!

I enjoyed the style of your game and felt that your chosen exchange was a good fit. I also enjoyed the music that you chose/created, though at times it didn't seem to fit quite right with the visuals.

As stated by previous commenters, I felt that one of the biggest issues I faced was my inability to accurately predict where my character's hitbox was. In a bullet hell style game such as this one, that proved to be quite problematic.

Additionally, I thought the use of fourth wall breaks was interesting, if a bit heavy handed. 

Some interesting ideas i see here, but first fireball-guy was just kicked out of bounds on second and third attempt so i havent much of a fights) But cool use of theme non the less.

Hehe I had the same idea with elements. :)