9 downloads


Description:
Undertale Boss Ascension is a legendary artifact that, when activated with Shift + Right-click, transforms you into an overpowered boss—granting +20 hearts, 60% damage reduction, and enhanced strength, speed, and jump. While in Boss Mode, press G or R to cycle through nine devastating abilities, based on bosses from undertale.
Manage versions and create new iterations of this mod.
This will create a new mod based on "Undertale Boss Ascension" with your modifications. The original mod will remain unchanged and you'll be credited as the author of the remix.
9
Nov 19, 2025, 04:50 AM
User request: [Ported to Minecraft Java 1.20.1 from 1.21.5]

nitrohiker728
Java 1.21.5
Click here for installation instructions
This mod is licensed under the CreativeMode Mods License.