uumuu boss hollow knight wiki guide
Location Teacher's Archives
Health 300
Reward/s Access to Monomon the Teacher

Uumuu is a Boss in Hollow Knight. Bosses are special Enemies that feature their own arena, a large amount of health, and a variety of unique moves and abilities. You will need to perform multiple attacks such as using The Nail and Nail Arts along with the Spells and Abilities in order to defeat them. Some bosses are capable of entering into a state of stagger after landing a number of attacks on them.

As soon as you encounter a boss, its name will appear on the screen, the music will change into a boss battle theme, and usually,  paths connecting the arena will close or will be blocked leaving you no choice but to face these devastating and unique foes.


Intelligent being that guards the inner chamber of the Teacher's Archives.

The canyon below us, the one thick with fog and crackling with strange energy... a Hunter can lose their senses down there. Be careful... strange and unnatural things lurk there.


Uumuu Location


Uumuu Rewards



Uumuu Strategies

Strategy Writeup

Uumuu is a being where it has a shield that protects it from physical and spell-based attacks. It is useless to try and attack it, so the first thing to do is to avoid its attacks and wait for Quirrel to appear. Once he appears, he will aid you by breaking Uumuu's protective barrier where it will cause Uumuu to deflate like a balloon making it vulnerable to any attacks. Simply rinse and repeat until Uumuu is defeated. 


Attacks & Counters

Attack Counter
Phase 1
Trail of Lightning Bolts Uumuu will summon a trail of Lightning Bolts that will follow The Knight's trail, simply keep moving around the arena by jumping, dashing, and by using the walls to slide down or climb up, each bolt of lightning will explode after 2 seconds allowing you to jump towards a new direction if you get stuck.
Burts of Lightning Bolts Uummu will summon multiple lightning bolts that will cover the arena. Don't be overwhelmed since there is a spot for The Knight to stand in to avoid the lightning bolts.
Hover Uumuu will try to fly and chase The Knight. It can be avoided easily since it flies slowly and will stop in place to telegraph its attacks.



Uumuu Lore

Uumuu is a jellyfish-like being imbued with electricity that appears from an acid pool near the inner chamber at the Teacher's Archives. Although its soul and body has been consumed by The Infection, it is still an intelligent being that guards Monomon's chambers.


Uumuu Notes & Trivia

  • Uumuu is one of the bosses where an NPC, Quirrel, joins The Knight to aid a player in battle.



Broken Vessel  ♦  Brooding Mawlek  ♦  Brothers Oro and Mato  ♦  Crystal Guardian  ♦  Dung Defender (Boss)  ♦  Elder Hu  ♦  Failed Champion  ♦  False Knight  ♦  Flukemarm  ♦  Galien  ♦  God Tamer  ♦  Gorb  ♦  Great Nailsage Sly  ♦  Grey Prince Zote  ♦  Gruz Mother  ♦  Hive Knight  ♦  Hollow Knight  ♦  Hornet (Boss)  ♦  Lost Kin  ♦  Mantis Lords  ♦  Markoth  ♦  Marmu  ♦  Massive Moss Charger  ♦  Nightmare King Grimm  ♦  No Eyes  ♦  Nosk  ♦  Oblobble  ♦  Paintmaster Sheo  ♦  Soul Master  ♦  Soul Tyrant  ♦  Soul Warrior  ♦  The Collector  ♦  The Radiance  ♦  Traitor Lord  ♦  Troupe Master Grimm (Boss)  ♦  Vengefly King  ♦  Watcher Knight  ♦  White Defender  ♦  Winged Nosk  ♦  Xero  ♦  Zote the Mighty (Boss)


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