Little Rock of Horror / Dream a Little Dream - S1-E13
Continuity mistake: In Dream a Little Dream when it shows Grim, Billy and Mandy eating the pizza, the box is empty. But when they wake up, there is one slice left.
Grim & Evil (2001)
1 mistake in Little Rock of Horror / Dream a Little Dream
Starring: Grey Griffin, Richard Steven Horvitz, Vanessa Marshall, Greg Eagles
Hector Con Carne: I'm not even on this stupid show any more.
Fiend is Like Friend Without the 'R' - S1-E4
Trivia: Nergal is the villain introduced in this episode. "Nergal" originally was the name of the Babylonian God of Fire and Guardian of the Underworld. In the Bible, he is one of the demons allied with Satan himself. In the series Nergal is associated with the underworld and fire.