While spending an afternoon in the Viking Village at Happy Sally Land, Scooby and the gang are drawn into a mystery after an angry Viking starts to scare all the visitors away from the new roller coaster.

Professor Pumpernickel has recreated an ancient civilization on a beautiful jungle nature preserve. A mysterious white gorilla starts terrorizing all the visitors - is the ghostly gorilla real?

Scobby and his friends try to discover why a sinister rodeo clown is trying to sabotage the world-famous yodeling cowboy, Bucky McCoy's show.

Scooby-Doo and the gang are ready to celebrate Lone Wolf Ranch's 100th birthday, but when the full moon rises, things start to get hairy.

The dog detective and his friends look for a treasure map on board an old clipper ship, but there is a ghost after that map, too.

After learning that a boogeyman is haunting a bowling alley, Scooby, Shaggy, Fred, Daphne, and Velma set out to discover who is trying to scare everyone away from the lanes.

At a games tournament to watch a checkers champ play against a computer, Scooby-Doo and his friends soon realize something is amiss when the computer comes to life, and the gang sets out to solve the case.