Top 10 Hardest Hollow Knight Bosses

Hollow Knight is a really hard game at points, with certain obstacles requiring the utmost precision and reaction. This is none the truer when talking about the boss fights in the game, which are by far some of the most grueling aspects of the game.

The Top Ten

Absolute Radiance

Stupid to have to go through the entire pantheon of hallownest when you inevitably die, sure it was pretty annoying to go through the hollow knight to get to radiance, but spending 40 minutes to get to a fight, just to redo it a hundred times is insane.

This fight is extremely difficult, but for mostly the wrong reasons. The fight is extremely dependent on RNG, doing massive damage and having wide spreading, fast attacks on tiny platforms, easily leaving the player in a situation where avoiding damage is nigh on impossible.

Haven't though personally but looks very difficult

Nightmare King Grimm

The difficulty from this boss comes from the lack of an easy way to take care of him, along with the extreme speed of the fight. It requires some very precise maneuvers in parts as well, most notably the pseudo bullet hell section.There are also few attacks which you can just shadow dash through to avoid, due to some either having strange delays that are hard to perfectly pinpoint, or because the attacks simply have too many elements to reliably dodge them all with a simple dash.

Second hardest out of all the bosses I have thought. Very fast, tanky and double damage makes for a hard boss but is fun.

Pure Vessel

Hardest boss I have thought. Fast, lots of health and double damage makes him as hard as NKG, but he has even less warning and unique attacks.

The tanky, unpredictable nature of the boss makes it one of the most difficult in the game. It has a massive moveset that can easily combo you to death if you aren't quick and don't know the proper way to handle the attack. The various ranged attacks further put pressure on the player, as nowhere is safe and you essentially can't heal until you stun it, meaning that each mistake is very costly.

Great Nailsage Sly

The fact that he punishes you for being overaggressive is such a nice touch, which when combined with his lightning fast attacks and flashy spins, makes him quite a difficult fight. What really makes him so difficult however, is his second phase, which involves him jumping around the arena constantly, before lunging at you and spinning, providing about a second in which you can attack without getting hurt back. This was the fight that took me the longest to get to grips with.

Quit difficult, cannot beat him on ascended for the life of me

Not really that hard

Sisters of Battle

This is undoubtedly the fastest fight in the game, and by an absolutely enormous margin, having to fight 3 extremely quick mantises at the same time, often while two of them are throwing projectiles to trap you, all while the third one could be dropping on you with its lance out. This speed is well balanced by the fact that t doesn't last too long, and the fight becomes slower as you take them out one by one.

The fast pacing is what makes this hard


The fight is essentially the same as Absolute Radiance's fight, but slightly slower and more manageable, making it still incredibly intense, but now on a scale that is much more feasible, especially since if you've gotten all of the upgrades in the game, you definitely have the strength to take it on without getting absolutely destroyed in the process.

Hardest non DLC boss, fitting as it is the true final boss

Failed Champion

Obscenely fast and intense, being able to kill you in a matter of seconds. The shockwaves sent at you on top of the constantly falling rocks provides for an extremely difficult fight that ends quickly in either way. It's definitely another fight that takes a long time to master.

Soul Tyrant

This boss is quite tanky, with some attacks that are quite tricky to dodge. The one that particularly trips me up is the attack where he charges while casting 6 rotating magic orbs around him, which I never was able to properly learn how to dodge. The second phase is extremely fast paced and relies on good positioning an keen awareness of surroundings in order to survive, making it a tough way to end the fight.

Can you just put a save bench next to it please thank you jesus christ

Watcher Knights

While they're quite simple to dodge, the growing number of them that appears in the fight can get overwhelming. The only thing not putting them higher up is the fact that if you have even half-decent damage, you can obliterate them with very little difficulty.

Second hardest non DLC boss. Gets very frantic.

Lost Kin

The Contenders

White Defender

While this boss isn't particularly insane in terms of difficulty, the fight is quite fast paced and difficult, providing a challenging fight all around.

Traitor Lord
Grey Prince Zote

Zote's fast and frustrating gameplay can be quite difficult to control, and the high health, speed, and damage make him one of the hardest bosses.

Zote in level 10, pure frustration.


The fight consists of having to balance between staying far enough away to avoid the shield, but close enough to hit, all while dodging flying swords that spawn at random locations. While the first version of Markoth is manageable, the second version found in the pantheons has no floor, forcing you to use small platforms. It requires precise play and some acrobatics to beat this boss.

I've come to make an anouncement, Markoth is a $%#^# !@# &^$&$^^^$&. He pissed on my PoH run.

Primal Aspid

Definitely the hardest boss in the game, right next to Gruz Mother. Impossible to dodge and even more impossible to hit. Way too small and constantly moves away whenever you try to hit it. Took me several hours to beat.

Hardest boss in the game. Impossible to dodge its attacks

Primal Aspid bad

Gruz Mother

Hardest fight in the game, kept on dying. Going through this in the Pantheon of Hallownest just to have that pushover of a fight Absolute Radiance is really stupid.


The second fight she is very difficult she is FAST

Vengefly King
Radiant Gruz Mother
Enraged Guardian
Uumuu (Godhome)

The double damage jellyfish you have to hit into it are cancer. I have found my run ending to it more times than I can count

Fasle Knight
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