Underfist: Halloween Bash
2008 ‧ Adventure/Animation ‧ 1h 1m
Initial release: October 12, 2008
Director: Shaun Cashman
First episode date: October 12, 2008 (USA)
Adapted from: The Grim Adventures of Billy & Mandy
Ending theme: "Underfist"
Villain: Bun Bun
Cast