It's certaintly difficult lol. I managed to get on the leaderboard though, soooo ;)
Boss design is very cool, and music fits the frantic feel of the game. I like the look of the attack sprites too.
For improvements, I had trouble with the Player Character Hitbox; Sometimes I would think I had dodged an attack and then it would hit me anyway. It could also be a bit unclear whether the bomb was having any effect.
Neat submission. Good job!