I’d have to replay and pay better attention to this to figure it out better myself. But I’m off on holidays for the next few days
I liked the boss battle generally. I figured out pretty quickly that you could just jump-dash over the boss from side to side for an easy victory. That was probably not intended because it made it really easy to dodge its attacks without really paying attention to the patterns.
When not cheating like that I found the boss enjoyable. Some more attack types could have been nice, like something with projectiles or the environment to force the player to pay attention to more than just the boss itself. Another thing is I sometimes didn’t see an attack coming because I was too far away from the boss. Zooming the camera out a bit for the boss (maybe only when the boss would be off screen otherwise) would’ve allowed to better predict the boss’ next move which I think makes the battle more fair.