The Harlem Globetrotters made their final appearance for Hanna-Barbera for six years in their 3rd & final appearance on The New Scooby-Doo Movies. "The Mystery of Haunted Island" served as the second season opener. Oddly enough, the 'Trotters also closed the first season with "The Loch Ness Mess", which we'll get to another time.
Coloring errors resulted in an odd scene nearly six minutes in when it looks like Daphne's dress was rolled up, revealing the panty lines in her pink hose. Oh, I'm sure a few million teenage boys didn't mind that at all.
Formulaic on both sides, and not the least bit exciting.