Radiant No Eyes except EVERYTHING is lava (All Difficulties) (Hollow Knight)

0:00 Attuned
0:49 Ascended
1:54 Radiant

This took several days to pull off, which is pretty standard for any floorless walless boss. I made the spectacular decision to not allow myself any pogos on spikes, which made the RNG required quite bad, as over half of the spots No Eyes can teleport to start the fight aren't even in range. Even if her first teleport is in range, she has a chance to teleport to the opposite corner of the arena after only one or two hits, which is an immediate game over. Also, sometimes her first spawn point is guarded by an unlucky spirit spawn which almost completely blocks the spot, yet another cause of many early deaths.

Past early game, the fight is much more reliant on skill, needing a string of successful Shrogos (the timing of which is 4 frames wide), as well as properly dodging her spirits in close quarters with an incredibly unwieldy moveset. You can never get too comfortable in any given position, even while pogoing. Often No Eyes will teleport from under you right as you're expecting to pogo her, causing an immediate fall and game over. This can especially the case if she teleports to a far corner of the map--sometimes, instead of chasing her, it's better to hold your ground in the center, using Shrogos to stall and wait for a better teleport spot. The fight remains relatively stable until her last 150 HP, at which point the spirit spawn rate goes insane and it's a race against the clock to kill her before she kills you.

I didn't use Strength because the fight felt too short otherwise. No Eyes has only 570 HP on Attuned and 800 HP on Ascended/Radiant. Soul Catcher for the extra Shrogos still pulled its weight regardless.