Desc: Billy & Mandy's Big Boogey Adventure: Directed by Robert Alvarez, Russell Calabrese, Shaun Cashman, Phil Cummings, Matt Engstrom, Eddy Houchins, Gordon Kent, Christine Kolosov, Michel Lyman, Sue Perrotto, Kris Sherwood, Juli Murphy. With Grey Griffin, Greg Eagles, Richard Steven Horvitz, Vanessa Marshall. 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.