Billy & Mandy's Big Boogey Adventure
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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.

Critic Reviews from Rotten Tomatoes

"Gruesome, goofy cartoon movie better for tweens+."
‑ Nancy Davis Kho, Common Sense Media
More reviews for Billy & Mandy's Big Boogey Adventure on Rotten Tomatoes