I'm glad you liked the gameplay and mechanics. It sort of is luck based when you hit the player but if you notice during other bullet hell games the boss is kind of just sending as many bullets at you and you just need to dodge the patterns, I wanted to replicate that feeling. You have some really great ideas to refine this game! I will likely update this once the voting period is over and add some more 'synergistic' and interesting mutations. I did want to add a dodge roll to the Diver to make it feel more like a main character fighting a boss but I didn't have the time. Thank you for playing!