
Modrinth · Minecraft mod
Undertalees
this mod replaces the totem animation with the undertale animation "But it refused."
Quick answer
Which Undertalees release should I use?
Undertalees 0.1.1-1.21.11 targets 1.21.11 with Fabric. It must be installed on the client. Do not install it on the dedicated server. No extra mods listed for this file.
Where it goes
Is Undertalees required on the client, server, or both?
It must be installed on the client. Do not install it on the dedicated server.
This file is marked client-only.
What else does Undertalees 0.1.1-1.21.11 need?
0.1.1-1.21.11. 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 Undertalees without breaking your instance.
Built for Undertalees 0.1.1-1.21.11. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 0.1.1-1.21.11. It targets 1.21.11 with Fabric; 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
It must be installed on the client. Do not install it on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 0.1.1-1.21.11. It opens that exact file at the source.
About this project
What does Undertalees add?
Ever wanted your Totem of Undying to have a little more... DETERMINATION?
This mod replaces the Totem of Undying animation with an Undertale inspired “But it refused.” animation.
(only works on singleplayer)

(I'm not very good at modding and the code is a mess, so there might be some bugs, although everything seemed to work fine in my tests.)
Project description from Modrinth.
Pick your setup
Undertalees by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.11
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Undertalees versions and loaders
0.1.1-1.21.11
undertalees-0.1.1-1.21.11.jar
13 Sept 2026
0.1.1
undertalees-0.1.1-26.2.jar
11 Sept 2026
0.1.0
undertalees-0.1.0-26.2.jar
11 Sept 2026
0.1.0
undertalees-0.1.0+mc26.1.jar
15 Aug 2026
Looking for an older file? The official Modrinth project page is in Resources.