Roller Ghoster Ride is the seventh episode in the What's New Scooby Doo series.
Spoiler Alert - this is an episode guide and contains details of this Scooby Doo episode. If you don't want to know ahead of time, stop reading.
Nothing is ever easy or goes as planned for Scooby and the gang. The Mystery Gang is invited to Thrill Ride Park after Shaggy and Scooby win a roller-coaster design contest. Of course, the ride is based on eating, and appropriately called "All You Can Hurl."
Things are not as they should be. One of the rides, a para-sail, is hijacked by a hairy, green gremlin. This monster sabotages the ride, nearly injuring the riders and guests.
The gang soon meet Chris and Terry, sisters who run the park. Although they are sister, they are nothing alike. There is obvious tension between them over the rides and operation of the park.
Despite the Roller Ghoster's appearance, the gang tries to enjoy their time off and the thrill rides. Daphne starts off not wanting to ride, but soon becomes a huge thrill-ride fan. We are also introduced to a park patron, who is too short to ride any of the rides. He is clearly upset and threatens the park.
Fred, Daphne, and Velma try a sky-dive simulator. However, the Roller Ghoster sabotages the simulator, running the risk of of sending the gang into the huge fan blades. Scooby and Shaggy go off to ride a giant sling-shot, when the Roller Ghoster appears to create more trouble.
Upon investigating these events, some of Chris' hair and her wrench are found at the scene of one of the incidents
After more sight gags and a chase, the Roller Ghoster is caught. It is is revealed that Chris's sister Terry is the gremlin.
- The Monster: Roller Ghoster
- The Villain: Terry
- Why: She is jealous of her sister Chris and her success at the park.