Dr. Kochin came through for his creator a second time fifty years later when he gathered the Dragon Balls and wished for Shenron to thaw the ice-enshrouded fortress. Freed from his frozen sleep, Dr. Wheelo became obsessed with finding the world's strongest man so that his own brain might be transplanted into it. He sent Kochin and Bio-Men to find this man, and at first they thought it was Master Roshi, but when Kishime, Misokatsun and Ebifurya (his Bio-Warriors) easily beat Roshi, Dr. Wheelo started to doubt they had the right person. He then went after Goku's body. When Dr. Wheelo's further attempts to subdue Goku met with failure (such as using a special device to make Piccolo fight Goku and Gohan), the enraged scientist decided to kill him and all his friends. When that also failed, Dr. Wheelo decided to just concentrate the energy contained within his laboratory's power core to fire a gigantic wave and destroy the entire world. Goku was able to form a Spirit Bomb and used it to overpower Dr. Wheelo's attack and destroy the robotic scientist for good. Dr. Wheelo also appears on the Dragon Ball Z: Fusion Reborn poster, but he is not featured in the movie.