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  2. The Grim Adventures of Billy & Mandy
  3. S00E03 (Underfist: Halloween Bash)
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  • United States of America
  • August 25, 2001

The Grim Adventures of Billy & Mandy

Underfist: Halloween Bash

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Season 0 Episode 3

Billy, Irwin and Mandy go trick-or-treating on Halloween, and an evil marshmallow bunny attacks children with chocolate beasts.

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