XBB's Roaring Knight

The boss fight centers on a fanmade knight based on the Deltarune game, and the spawn egg for the knight sits in the creative mode item tab under a challenge boss category. The author suggests testing it in a superflat world, viewed from the third-person back angle, where the arena is easiest to read.

Its attack set grows in three stages. Crystal Barrage fires fragments that split and, in its third version, track the player. Board Rend sends barrages in four directions, then adds four diagonal ones with their own pattern. Blade Hallway and Sanguine Slash move through corridors and red marked points, and Knife Dance drops swords that come faster as the fight goes on.

The mod's background music is the original Deltarune score by Toby Fox, and the knight comes with an opening animation that leads into the sixteen attack types, each with its own animation and effects. Roaring Knight requires Geckolib, and the mod is published for Forge and NeoForge on 1.20.1 and 1.21.1, under All rights reserved, so it is not open source.