Got this idea so I decided to share it for fun.
We can all agree the boss isn’t all that fun fighting for the 100th time on superstar hero so here’s my idea:
Phase 1. Stays the same as it is.
Phase 2. Replace it with phase 3 (a row of comets going through)
Phase 3. The Henlley’s Comet breaks into 3 pieces, one bigger in the center and 2 smaller on the left and right, the 2 smaller pieces will occasionally swoop in one at a time, on harder difficulty there could be small comet debree coming out of the boss from time to time.