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Bosses Unleashed

A mod that adds some bosses to minecraft.
by hite1207
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544,716 downloads
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Updated Jul 6, 2026
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Mobs

Bosses Unleashed is a mod that adds some bosses to minecraft.

Mobs :

1. Jellyfish


This li'll jellyfish can be found at special dimension.
In order to enter the dimension, you need to find a wormhole.
Wormhole can be found at end high lands. (you can adjust spawning chance in config)



If someone entered wormhole, it will be disappear after 10 seconds.
When you entered a dimension, you'll see this li'll jellyfish floating in air.



You can just watch it forever, or...

If you hit them, it will show it's real form
Below is video of the boss.



한국 분들은 아래의 영상도 시청해주세요!



Note 1 : You'll revive in the dimension when die.
but once defeat the boss and enter the worm hole again, it will restore your original respawn point.

Note 2 : If jellyfish finished to create clones and start shooting orbs toward you, you can hit real one to make all clones disappear.

Note 3 : In final phase, you need to hit jellyfish to stop them, otherwise...

Note 4 : Camera shakes and shockwave effect can be disabled in config.

Drop Items : 

1. Celestial Jelly


Material and food item.
Can be crafted to jellyfish armor set or jellyfish umbrella. (see JEI for recipe)
It will restore lot of hunger bar but will restore very low amount of saturation.

2. Celestial Core

Just material item, required for jellyfish chestplate and jellyfish umbrella.

3. Celestial Jellyfish Armor

Currently doesn't have special ability, just high defence

4. Celestial Jellyfish Umbrella

When folded, right click to use dash ability and make a trail of celestial orbs.


When unfolded, immune to fall damage and grants slow falling.

Art by Supreme King of cats
Some effects are from shader toy

bossesunleashed-1.0.4-hotfix.jar
MC 1.20.1, Forge
Release 2026-03-03 Get
bossesunleashed-1.0.3.jar
MC 1.20.1, Forge
Alpha 2025-12-09 Get

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