Kuudra

Kuudra is a boss fought in Kuudra's Hollow, which you enter from the Forgotten Skull.¹ It has five tiers: Basic, Hot, Burning, Fiery and Infernal.¹

Unlocking tiers

Elle takes you to the Basic tier. Each higher tier needs the one before it beaten and more faction reputation (in any faction): 1,000 for Hot, 3,000 for Burning, 7,000 for Fiery and 12,000 for Infernal. Hot also needs the main quest done.¹ Mob waves come faster on higher tiers.¹

The fight

1. Supplies: fish supply crates out of the lava with a lava rod and carry them to the middle.¹
2. Ballista: build the ballista from the supply piles while mobs try to break it.¹
3. Fuel: fish up 4 fuel cells, then fire the ballista at Kuudra.¹
4. Stomach (Burning and up): the ballista does very little damage unless Kuudra is stunned. To stun it, get inside it (by cannon or by letting its tentacles grab you) and break the orbs in its stomach.¹
5. Lair (Infernal only): at 25% health the arena collapses and the fight moves below; every death here is final unless a teammate on the Support route revives you.¹

During the fight you earn tokens from kills to spend in the Kuudra perk shop on routes and upgrades.¹

Rewards

After the fight there is a free chest with Crimson Essence and a paid chest that needs the tier's Kuudra Key.¹ Each run also counts toward the Kuudra boss collection, from 1 point for Basic up to 5 for Infernal; it unlocks the Kuudra Pet among other things.¹ The items below need Kuudra progress.²

Sources

1. Kuudra · Hypixel SkyBlock Wiki Community wiki read 2026-09-26
2. Item requirements (NotEnoughUpdates-REPO) Game data