The Rolling Thunder is a yo-yo released by Abbe Toys as part of the Black Mamba line in May 1999. It featured an auto-return cam system, much like the Yo-Matic Black Mamba, but this time, there are four-armed quads weighted with metal balls. It also features a steel ball bearing axle, making it the "five-star" version of the Voodoo Guru.
This yo-yo, along with the Voodoo Guru, could be considered Australia's equivalents to the Yomega X-Brain.
Black Mamba Rolling Thunder (from Dave Schulte's collection)