Hollow Knight is packed with so many bosses that it can feel a little overwhelming, especially if you are jumping back in before Silksong or visiting Hallownest for the first time. Some players only care about the main story fights, while others hunt down every optional boss they can find. Either way, there is a lot to swing your nail at. We put together a difficulty ranking of every Hollow Knight boss based on a normal first playthrough. This is not about perfect speedrun strats or no hit attempts, just how these fights feel when you meet them for the first time with reasonable upgrades. Let’s jump in, starting from the easiest and climbing toward pure nightmare fuel.
46. Massive Moss Charger
Massive Moss Charger probably will not be your first boss, but he is easily one of the simplest. By the time you find this pile of leaves, you should know how to jump and swing your nail. That is just about all you need. Time your hits, stand your ground, and watch him repeatedly charge into your attacks. It is more funny than threatening.
Overall Difficulty: 0.25 out of 10
45. Gruz Mother
For a lot of players, Gruz Mother is the true intro boss. She can catch you off guard if you are still getting used to the controls, but her pattern is easy to read. If you are comfortable tracking a bouncing enemy, you will be fine. The real danger is after she dies and bursts into a swarm of baby Gruz enemies. I am not proud to admit I died to those things.
Overall Difficulty: 0.5 out of 10
44. Vengefly King
Vengefly King swoops down, spits at you, and repeats. He is basically a tutorial on reading attack tells and learning that if you just face tank everything, this game will punish you. Even without paying close attention, you can beat him as long as you watch your health and avoid getting cornered. Save Zote while you are at it so he can cause problems for you later.
Overall Difficulty: 0.5 out of 10
43. False Knight
False Knight was the first boss that actually killed me. Only once, but it still stung. His slam attacks and the falling meteors can be confusing the first time, especially near the end of his attack cycles. Once you realize you can knock those meteors back into him for extra damage, the fight gets much easier. The build up to the encounter is great, even if the boss himself never quite lives up to that atmosphere.
Overall Difficulty: 1 out of 10
42. Broken Vessel
Broken Vessel can feel like a wall if you are used to fights where you dodge, back off, and heal. He does not really give you much room for that. The trick is to keep your movements tight. During his spewing attack, small, controlled dodges are safer than frantic panic jumps. His swings are very avoidable once you understand his rhythm. Go in with as many masks as you can, and do not rely on healing mid fight.
Overall Difficulty: 2 out of 10
41. Marmu
Marmu is basically a bouncy ball in boss form. Stand your ground, swing with good timing, and you will win in under a minute. It is still a fun little dream fight, and Marmu’s sound effects are adorable.
Overall Difficulty: 2.75 out of 10
40. Flukemarm
Flukemarm is not hard, just annoying. The boss itself never moves, it just spits out some of the most irritating enemies in the game. You can play it safe by killing each spawn, building up soul, and blasting the boss with Shade Soul. Or you can pogo on top of the fluke sack and keep swinging while you casually swat away anything that gets too close. Either way, the fight is more gross than dangerous.
Overall Difficulty: 3.5 out of 10
39. Soul Warrior
Soul Warrior feels more like a strong enemy than a full boss, but the game treats him like a mini milestone. The fight is fast and over fairly quickly, yet it teaches you a lot about quick dodges and reacting to teleports. Think of him as a warm up for the real challenge that comes later.
Overall Difficulty: 4.5 out of 10
38. Hornet (First Encounter)
This is where Hollow Knight starts to ask for a bit more from you. Hornet’s first fight forced me to really pay attention to tells and distinguish between her different wind ups. Some of her animations look similar, which can make healing risky until you learn the patterns. After a few attempts, things start to click, and every rematch feels smoother.
Overall Difficulty: 4.75 out of 10
37. Crystal Guardian
Crystal Guardian is simple but satisfying. Dodge the laser, sneak in a couple of hits, repeat. The far right side of the arena is usually a safe place to heal if you need to. It is not a deep fight, but it does prepare you for the much nastier version you will face later.
Overall Difficulty: 5 out of 10
36. Gorb
Gorb is a pure dodging test. Spears rain down in patterns, and your job is to weave through them while getting in hits where you can. It is good training for later fights that demand strong pattern recognition. He almost feels like a warm up course for Radiance, even though the content came later.
Overall Difficulty: 5 out of 10
35. Oblobble
Oblobble is basically a stress test for spatial awareness. Projectiles cover the screen, especially with multiple Oblobble in the arena. Essence attacks work well here. Burst from a safer distance instead of sticking close and trying to guess the pattern of every shot. Once you get used to navigating the chaos, the fight becomes much more manageable.
Overall Difficulty: 5.5 out of 10
34. Soul Master
A lot of players hit Soul Master and think they just met the hardest boss in the game. On a first playthrough, he feels like a huge spike, especially with that second phase surprise. On a replay, though, he goes down much easier. Once you know his tricks, the fight turns into fast paced muscle memory. He is still a solid mid game challenge and a good example of how the game ramps up.
Overall Difficulty: 5.75 out of 10
33. Xero
Xero looks intimidating, but the fight becomes much easier once you realize you can duck under his platform to heal whenever you like. He floats above you, throws swords, and then the swords boomerang back. Dodging the return flight is the real danger here. Tap him a few times, back off, and keep an eye on those returning blades.
Overall Difficulty: 5.75 out of 10
32. Nosk
Nosk has one of the creepiest build ups in the game. The long, silent lead in and the way it uses a familiar face to lure you in is brilliant. The fight itself is not quite as terrifying. Once you learn how to position yourself, you can use the arena layout to cheese him fairly hard. The first encounter can still feel stressful simply because of how unsettling the boss looks and moves.
Overall Difficulty: 5.75 out of 10
31. Elder Hu
Elder Hu is a memorization fight. His patterns close in around you, and you have to learn when to dash through or hop out of the way. If you walk in blind, your first attempt will probably be rough. By the third or fourth try, your brain starts to keep up and the difficulty drops a lot.
Overall Difficulty: 6 out of 10
30. Uumuu
Uumuu is Hollow Knight’s version of a “hard for the wrong reasons” boss. The fight is slow, dependent on another character’s actions, and feels more about patience than skill. The worst part is waiting for the right moments to strike while you dodge lightning everywhere. It is absolutely doable, just not very fun to repeat.
Overall Difficulty: 6.25 out of 10
29. Hollow Knight
Seeing the Hollow Knight ranked this low might feel strange, since he is one of the final bosses and the title character. In practice, he is not that bad. His attacks are clearly telegraphed, and his second phase mostly just adds speed and a bit more chaos. I died to him once on my first playthrough and have never really struggled with him since. Great fight, solid atmosphere, just not as punishing as his reputation suggests.
Overall Difficulty: 6.5 out of 10
28. Mantis Lords
This is where the game gets serious. The Mantis Lords are fast, precise, and punish greedy plays. At first you fight one, then the other two join in and things get hectic. Learning when to attack and when to simply dodge is crucial here. Once you get the rhythm down, it becomes one of the most satisfying fights in the game.
Overall Difficulty: 6.75 out of 10
27. Dung Defender
Dung Defender is weird, gross, and honestly pretty lovable. Under the silly theme is a surprisingly tricky boss, especially if you wander into his arena early. He has a wide variety of moves and can keep you guessing. It is a fun challenge, but definitely a step up from most of the previous fights.
Overall Difficulty: 6.75 out of 10
26. Brooding Mawlek
Brooding Mawlek gave me more trouble than it seems to give most players. A lot of that comes from her wide area attacks and awkward hitboxes. Finding safe spots during her spreads of projectiles can be tough, and getting in close often turns into a health trade. You can cheese her with the environment, but if you go toe to toe, expect a rough time.
Overall Difficulty: 6.75 out of 10
25. Enraged Guardian
Enraged Guardian is Crystal Guardian on energy drinks. More lasers, more speed, more damage. If you handled the original, you can handle this one, but every mistake hurts much more. Stay sharp, or you will see that death screen in record time.
Overall Difficulty: 7 out of 10
24. No Eyes
No Eyes is unnerving. The music, the distorted voice, and the ghostly visuals combine into something that feels more like a horror vignette than a standard fight. Most of the difficulty comes from the platforming and dodging ghost apparitions. It gets busier and busier as the fight goes on, and the atmosphere alone can throw off your focus.
Overall Difficulty: 7 out of 10
23. Winged Nosk
Take Nosk, give it wings, and you get one of the most frustrating reskins in the game. The patterns feel random in a way that is not very satisfying to learn, and his tendency to fly off and waste your time can be infuriating. When you die, it rarely feels fair. It just feels like you got chipped down.
Overall Difficulty: 7 out of 10
22. Galien
Galien looks like he lost a fight with something enormous, and his cracked design already tells a story. Mechanics wise, he fits my personal play style perfectly, which is probably why I like this fight so much. Dodging his spinning weapon as it speeds up is tense but never feels cheap. There is urgency without chaos, which makes the whole encounter extremely fun.
Overall Difficulty: 7.25 out of 10
21. Nail Masters Oro and Mato
From here on out, most bosses start to blur together in terms of difficulty. Oro and Mato pushed me into full concentration mode. Each Nailmaster is solid on their own, and dealing with both at once forces you to watch the entire arena at all times. It is a great duel as long as your brain can keep up.
Overall Difficulty: 7.25 out of 10
20. The Collector
The Collector’s difficulty depends a lot on how well you know the enemies in Hollow Knight. If you are familiar with their behaviors, this fight is much more manageable. He jumps around the room while summoning waves of mobs. The faster you can land precise hits on him, the fewer waves you will have to endure. If you let the arena fill up, things get messy fast.
Overall Difficulty: 7.25 out of 10
19. God Tamer
God Tamer is not terrifying on its own. The problem is everything that comes before it. By the time you reach this boss in the gauntlet, you are probably low on soul, maybe low on health, and very aware that dying means redoing the entire run. That pressure ramps up the difficulty by itself. Ignore the rider and focus on the beast. Take it down, and the fight ends.
Overall Difficulty: 7.5 out of 10
18. Hive Knight
Hive Knight is often ranked a bit lower, but he gave me a hard time. He is incredibly fast, his patterns mix up constantly, and he gives very few safe windows to heal. Coming back after a break and facing him felt like running into a brick wall. On a second playthrough, he was easier, but he still earns his spot as a serious threat.
Overall Difficulty: 7.75 out of 10
17. Grimm
Grimm is where the game starts feeling like a true boss rush. He is fast, stylish, and punishing, and you need to stay locked in from start to finish. Anyone who knows Hollow Knight will immediately think of his upgraded form, but regular Grimm is no joke either. At least his arena is close to a bench.
Overall Difficulty: 8 out of 10
16. White Defender
White Defender is Dung Defender at his prime. Faster, stronger, and wrapped in lore. His white armor represents who he was before he retreated to the sewers out of shame. The fight shows that old pride and ferocity. By the end, you respect him a lot more, even if he is still covered in, well, you know.
Overall Difficulty: 8 out of 10
15. Lost Kin
Lost Kin is one of the biggest jumps in difficulty among the dream versions. He gains the ability to summon flying minions that home in on you and clutter the arena. Ignoring them is a bad idea. Take them out as they appear, or the screen will fill up and your health will vanish. He may be family, but he still has to go.
Overall Difficulty: 8 out of 10
14. Markoth
Markoth’s attacks are not that hard to read, but the fight asks you to do a lot at once. You have to watch the rotating shield, track projectiles, hop between platforms, and find openings to strike. During his big area attack, everything turns into chaos. You are scrambling just to stay alive. In the late boss gauntlet, this fight becomes even more exhausting.
Overall Difficulty: 8 out of 10
13. Hornet (Second Encounter)
This was the first fight where I truly got stuck. Hornet’s second encounter adds traps that linger in the arena, and ignoring them makes the fight much harder. You have to destroy those traps while still watching Hornet out of the corner of your eye. It is hard to balance both, but finally beating her feels amazing and opens up a pivotal part of the story.
Overall Difficulty: 8.25 out of 10
12. Paintmaster Sheo
Paintmaster Sheo is one of the most creative bosses in the game. The whole arena becomes a canvas by the end, which looks fantastic. He does not have many attacks, but every single one hits like a truck. Defense and patience matter more here than raw aggression. Once you learn to respect his damage, the fight becomes a really fun duel.
Overall Difficulty: 8.5 out of 10
11. Soul Tyrant
Soul Tyrant is Soul Master with the training wheels ripped off. He teleports faster, hits harder, and gives you tiny openings to punish. If you fought him shortly after Soul Master, your muscle memory helps a lot, but you still need to push your reaction time to the next level. Once you find the rhythm, the fight feels like a wild dance.
Overall Difficulty: 8.5 out of 10
10. Watcher Knight
Now we are in the top ten. Watcher Knight is a name that sends a chill through a lot of players. If you do not drop the chandelier beforehand, you fight all six knights, which is just rude. Even with one removed, they swarm you quickly, and you have to decide when to go all in and when to purely dodge. Great fight, brutal learning curve.
Overall Difficulty: 8.75 out of 10
9. Traitor Lord
Traitor Lord might be my favorite boss in the entire game. His story, the NPC involved, and the emotional stakes all come together perfectly. In the arena, he is huge, aggressive, and very hard to slip past. With your ally helping, you can sneak in hits while he is distracted, but the fight still feels like an intense duel. The lore payoff makes the whole thing hit even harder.
Overall Difficulty: 9 out of 10
8. Failed Champion
Failed Champion is such a clever idea. Taking False Knight and reimagining him as a frantic, amped up dream version is incredibly satisfying. He is faster, hits harder, and fills the arena with hazards, but the core of the fight is still familiar. I was so excited to refight him that I sprinted back as soon as I got the Dream Nail.
Overall Difficulty: 9 out of 10
7. Great Nailsage Sly
Great Nailsage Sly is the tiny terror of Hallownest. Picture Yoda flipping around in that Star Wars duel and you are not far off. He ricochets across the arena with wild speed, chaining attacks together and giving you almost no time to think. If this little guy had the Force, I would uninstall.
Overall Difficulty: 9.25 out of 10
6. Grey Prince Zote
The first Zote fight is barely a boss. Grey Prince Zote more than makes up for that. His body slams create nasty shockwaves, and avoiding them requires precise timing. Using the walls to double jump over them helps, but it is still rough. The whole fight feels like a parody that somehow turned into a genuine challenge.
Overall Difficulty: 9.25 out of 10
5. Sisters of Battle
Imagine the Mantis Lords fight again, but now all three fight you at once, they are faster, hit harder, and gain damage as the battle goes on. That is Sisters of Battle. It is exhausting, thrilling, and one of the coolest boss designs in the game. The music, the flow, and the way your movement naturally syncs with theirs after a few attempts make this fight unforgettable.
Overall Difficulty: 9.5 out of 10
4. Radiance
Radiance is a fight that can make you think, “This must be the hardest boss in the game.” Then you meet the top three. She is brutally difficult, but always feels just barely within reach. On later playthroughs, once you know the patterns, she becomes a lot more manageable. That does not take away from how intense that first clear feels.
Overall Difficulty: 9.75 out of 10
3. Pure Vessel
Pure Vessel is the Hollow Knight fight on its final form. Clean, fast, and completely unforgiving. If Radiance did not exist as the true final boss, I would argue this should have been the main ending. The fight pushes every skill you have learned to the limit and rewards perfection.
Overall Difficulty: 10 out of 10
2. Nightmare King
Nightmare King Grimm is a wall that many players simply bounce off. Every move is designed to shred your health if you let your focus slip for even a moment. There are almost no safe windows for healing, and everything happens at high speed. Beating him as a non platformer expert feels like surviving an exam you did not study for but somehow passed anyway.
Overall Difficulty: An existential crisis at 2 AM out of 10
1. Absolute Radiance
Absolute Radiance is less a boss fight and more an exam in memorization, precision, and endurance. Just getting to her means mastering a huge number of other bosses and their variants. Once you arrive, you are thrown into tight patterns, narrow platforms, and attacks that punish even tiny mistakes. You will get hit. The question is whether you can hang on long enough for that one lucky, perfect run. If you manage to beat her, you absolutely earned the bragging rights.
Overall Difficulty: NO GOD, PLEASE NO out of 10
Final Thoughts
Hollow Knight’s bosses are a huge part of what makes Hallownest unforgettable. Some are light warm-ups, others are brutal skill checks, and a few exist purely to test your sanity. Difficulty will always be personal, but that moment when a tough pattern finally clicks is what keeps players coming back. If you’re diving back in before Silksong or chasing higher completion, expect to be pushed hard and love every second of it. And while you’re at it, make sure you’re geared up for the grind. Our Cubold Gaming Hollow Knight hoodies are comfortable, cleanly designed, and perfect for long play sessions or repping your love for games between boss runs.