A Pup Named Scooby-Doo

Terror, Thy Name Is Zombo (2x8)

Air date: Oct 28, 1989

The Gang goes to the Coolsville amusement park. Shaggy and Scooby are excited because they will be the first ones to ride Monster Mountain - a giant roller coaster - for earning the most raffle tickets. Will they survive the emergence of a terrifying ghost clown?