The Scooby-Doo gang's most favourite comic-book super hero, The Scarab, comes...
Scooby-Doo and Scrappy-Doo
Season 1 Episode 2: The Night Ghoul of Wonderworld
The gang buys Velma her fantasy, which is to be ""Watson for a day"" to a robotic Sherlock Holmes in a futuristic Londonworld at the Wonderworld amusement park. Although it's all supposed to be a game, there really is a crime to be solved.