Scooby-Doo and Scrappy-Doo - Season 2 - Eps 5: The Old Cat and Mouse Game
The gang are visiting the Tibetan Mountains and come across a Cat Man and his gang of evil felines. The Cat Man throws Shaggy, Scooby and Scrappy into the shrinking water fountain reducing them to the size of mice. In their tiny form, the three manage to eventually push the Cat Man into the shrinking water fountain and then escape. Once away from the Cat Man's hideaway the three return to their normal size.
About Scooby-Doo and Scrappy-Doo

Title: Scooby-Doo and Scrappy-Doo
First Air Date: 1979-09-22
Last Air Date: 1982-12-18
Status: Ended
Rating: 7.4/10 (from 311 votes)
Language: EN
Seasons: 4
Total Episodes: 115
Network: ABC
Genres: Animation, Mystery, Comedy, Family, Kids
Production Companies: Hanna-Barbera Productions, Ruby-Spears Enterprises
Synopsis
The original thirty-minute version of Scooby-Doo and Scrappy-Doo constitutes the fourth incarnation of the Hanna-Barbera Saturday morning cartoon Scooby-Doo. It premiered on September 22, 1979 and ran for one season on ABC as a half-hour program. A total of sixteen episodes were produced. It was the last Hanna-Barbera cartoon series to use the studio's laugh track. Cartoon Network's classic channel Boomerang reruns the series.
Cast

Casey Kasem
Shaggy Rogers (voice)

Don Messick
Scooby-Doo / Scrappy-Doo (voice)