Underfist: Halloween Bash

2008 television program directed by Shaun Cashman

Underfist: Halloween Bash is a 2008 animated TV movie based on The Grim Adventures of Billy & Mandy and was supposed to be a pilot for an unfinished show.


A marshmallow bunny named Bun Bun has taken over Endsville. Irwin, Jeff, General Skarr, Hoss Delgado and Fred Fredburger form the group known as Underfist.