Scooby-Dooby-Boo! Celebrate Halloween with the Mystery, Inc. gang.It's Halloween in Coolsville and Scooby and Shaggy are off to meet the gang at a groovy costume party! But when Scooby and Shaggy show up at the party, it's YIKES! in a haunted house! Turns out it's not really haunted, just for sale, and that Scooby and Shaggy have gotten the address wrong!