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Unmask the mystery!

Fred's cousin Jed is nowhere to be found! His animatronic monsters have gone berserk and are attacking anything that moves! It's up to Scooby-Doo and Mystery, Inc. to stop the scary costumed creatures and find Jed before it's too late...

- Explore a haunted mansion, a spooky theme park and more.
- Use the Nintendo DS stylus to defeat monsters, search for clues and play mini-games.
- Wear amazing costumes with special abilities to defeat the monsters.