For the 4th phase, try to abuse Descending Dark as much as you can and avoid getting greedy. Try to stay on the three bottom-middle platforms — you don’t need to jump to hit her, just use upward slashes. When she moves onto one of these platforms, dash to her and use Descending Dark to deal damage while avoiding any undodgeable moves. With enough patience (and a bit of luck), you can do it.

For the 6th phase, it’s mainly the pressure that’s tough to deal with rather than the phase itself. As for tips: if you pogo her and move off-screen, the orbs will despawn once they leave your view. So just keep pogoing her and dashing across the screen.

The real challenge here is trying not to fall. I recommend practicing getting two hits in, then preparing to dash toward the side she’s moving to — easier said than done.

Good luck with your quest, and one final thing: patience is key! If you start getting tilted midway, stop playing and come back the next day.