Dragonball Z: World's Strongest Man

Next the androids kidnap Bulma, causing Master Roshi to go after her and arrive at the lab. The lab belongs to Dr. Wheel, a giant brain attached to some machines who informs Master Roshi that he wants to take over the body of the world's strongest man. He pits Master Roshi against the same three androids that defeated Piccolo, and Master Roshi is defeated.

Gokou goes to the lab to rescue Bulma and Master Roshi. With the help of Krillin and Gohan, he defeats the three androids. Then Dr. Wheel, who is considering Gokou now, pits Gokou against a brainwashed Piccolo. Gohan is so upset he fires a shockwave at Dr. Wheel which subsequently releases Piccolo from his brainwashing. Master Roshi, Krillin, and Bulma manage to escape.

Upset to be losing, Dr. Wheel unleashing the robotic body that he was keeping his brain in and goes on a rampage. He is quite powerful, but Gokou blows him away.