Kolobok: Ultimate Boss
Kolobok: Ultimate Boss is a NeoForge boss mod for 1.20.1 that adds a four-stage Kolobok fight with a 900 HP health pool and a closing explosion.
What it does
The boss passes through four stages, each one more dangerous than the last. The early stages bring a muscular humanoid transformation, lasers, lightning and falling meteors, and the final stage ends in a countdown followed by a massive explosion. Kolobok is written as a hostile, almost living creature, and his death is final once the fight is won.
The fight is built around speed and pressure: the boss moves quickly, circles its targets at high speed and attacks aggressively on contact. Players within 50 blocks get the highest priority, and a nearby Kolobok prefers mobs with high maximum health. The author describes the boss as intentionally overpowered, aimed at chaotic battles and boss-versus-boss encounters.
The mod needs Geckolib to be installed alongside it. Every player and the server need a copy of the mod. Kolobok: Ultimate Boss is not open source and is released under All rights reserved, with files published for NeoForge 1.20.1 only.
Key features
Four-stage boss fight
The boss moves through four stages, transforming, attacking with lasers, lightning and meteors, then ending with a final explosion.
High health pool
The boss has 900 HP in total, so the fight is long and spread across its stages.
Fast, circling movement
Kolobok moves at high speed, circles targets and gains extra movement speed as the fight goes on.
Target priority
Players within 50 blocks are the boss's first priority, and nearby high-health mobs can draw its attention.
Melee and collision attacks
The boss uses heavy melee strikes and aggressive collision attacks against anything in reach.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Boss battles in survival
Players in Survival or Adventure mode meet the boss as a hostile threat that targets them first within 50 blocks.
Mob versus boss fights
The author suggests pitting the boss against other strong mobs to see which of them survive.
Who it’s for: Players who want a hard, chaotic boss encounter on a NeoForge 1.20.1 game, and server owners who want an overpowered fight with extra mobs and boss-versus-boss situations.
Questions
Does Kolobok: Ultimate Boss need Geckolib?
Do servers and players both need the mod?
Which game version does the mod support?
In the catalog
Kolobok: Ultimate Boss is one of 7,216 Magic mods on ModsFinder, and one of 2,992 Magic mods for NeoForge. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
Kolobok is no longer just a fairy-tale character. This mod adds a brutal four-stage boss inspired by the modern cinematic version of Kolobok. He is hostile to almost every living creature and becomes more dangerous with every phase.
Official listing
- Modrinth page
- modrinth.com/mod/kolobok-ultimate-boss
- Owner
- neccessaryevl
- Published
- 2026-08-09
- Updated on Modrinth
- 2026-08-09
- Facts verified
- 2026-10-15