 Dinn Corporation was hired to install the new ride with the help of Curtis D. Summers, who modeled the design of the roller coaster after Bobs, a famous coaster from the 1920s which operated at Chicago's Riverview Park until 1967.After an investment of $2.5 million, Raging Wolf Bobs opened to the public on May 28, 1988.It was marketed with the slogan "The Legend of Terror Returns".