Glenn Oyabe

When the Boogey Man causes Grim to lose his powers, rank, and title in the Underworld Court for misusing his powers, he plots to seek out Horror's Hand and take over the world. It's up to Billy, Mandy, Irwin, and Grim to get to Horror's Hand before the Boogey Man does.

Billy's hamster turned 10 in human years, but was awaiting to see the Grim Reaper. Billy and his friend, Mandy challenge the Reaper to a game of limbo to become best friends.