Uumuu

Behaviour and Tactics
Uumuu floats around the room, slowly homing into the player and occasionally using one of two attacks:
 * Burst: Uumuu will fill the arena with small bursts of lightning. Each lightning burst lasts for about one second. The lightning bursts appear in random spaces throughout the arena but thankfully they do leave some safe areas for The Knight to stand. The lightning bursts become dangerous at different times. The entire attack lasts for about two and a half seconds.
 * Chase: Uumuu will create a small burst of lightning where The Knight is . Uumuu will continue to create a new small burst of lightning every second for about six seconds. Each burst persists for about two seconds and each new burst will appear where The Knight is so constant movement is necessary.

Uumuu cannot be harmed normally, as its vulnerable core is protected by a membrane that deflects the player's attacks and shields it from Spells. However, after dodging attacks for a short time Quirrel will appear to help the Knight, leaping around the battlefield and occasionally popping Uumuu's shield. This will deflate Uumuu, leaving it open to attacks for a few seconds.

Although Uumuu may only have two attacks, they're both quite hard to dodge, and their pattern leaves few opportunities for healing. In addition, Uumuu's erratic movements and the very sparse opportunities for hitting it compared to its health pool result in a very drawn-out battle.

Locations
== Trivia == Ууму
 * The Uumuu fight is one of three fights in the game where an NPC aids the player, the other two are the Traitor Lord fight, where Cloth joins in, and the battle against The Hollow Knight, where Hornet helps defeat the boss.
 * Uumuu is among the few bosses who have to be beaten in order to win.