
Modrinth · Minecraft mod
King Boo
This datapack adds the King Boo from Mario! No resource pack required
Quick answer
Which King Boo release should I use?
King Boo 1.0+mod targets 1.21.6, 1.21.7, 1.21.8 with Fabric, Forge, NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is King Boo required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does King Boo 1.0+mod need?
1.0+mod. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add King Boo without breaking your instance.
Built for King Boo 1.0+mod. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0+mod. It targets 1.21.6, 1.21.7, 1.21.8 with Fabric, Forge, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.0+mod. It opens that exact file at the source.
About this project
What does King Boo add?
King Boo
King Boo is a ghost appearing in Luigi's Mansion & other games from the Mario universe.
This datapack simply adds the possibility to summon it if you are op, using this command:
/function king_boo:summon_king_boo

- Custom animation ✓
- Custom textures with opacity ✓
- No resource pack required
Currently, he doesn't have any special attacks
Project description from Modrinth.
Pick your setup
King Boo by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
5 loader builds26.1.2
5 loader builds26.1.1
5 loader builds26.1
5 loader builds1.21.11
5 loader builds1.21.10
5 loader builds1.21.9
5 loader builds1.21.8
5 loader builds1.21.7
5 loader builds1.21.6
5 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
King Boo versions and loaders
1.0+mod
kingboo-1.0.jar
21 Sept 2026
1.0
King Boo.zip
21 Sept 2026
Looking for an older file? The official Modrinth project page is in Resources.