sentences:  Billy and Mandy use Grim's supernatural abilities and powers to venture into supernatural locations or environments, such as the Underworld, or the Netherworld, inhabited by an assortment of grotesque monstrous beasts.The pair also use Grim's enormously strong supernatural abilities or ties with a number of beastly characters to achieve goals or desires for themselves, often with twisted results.Famed fictional monsters including Dracula, the Wolfman, and the bogeyman are also comically depicted in the series.