Stoneroo in the art picture. Stoneroo is a Maximal boxer. He petrified and turned-into-stone kangaroo, he came from the Planet Stheno to Prehistoric Earth. His beast mode is a Kangaroo. GalleryEdit Stoneroo in beast mode.Add a photo to this gallery Retrieved from "https://beastwarstransformers.fandom.com/wiki/Stoneroo?oldid=41790" Categories: Maximals Beast Warriors Beast Wars E.N.D.A.N.G.E.R.E.D. Maximals Kangaroo Statues Community content is available under CC-BY-SA unless otherwise noted.