Dr. Wheelo (Ｄｒ．ウイロー, Dr. Uirō) is the primary antagonist of Dragon Ball Z: The World's Strongest and a brilliant scientist who performed experiments in biotechnology. Wheelo's ultimate goal was to modify the human race using his science. Before he could realize his goal he died, but Dr.Kochin, his faithful servant, turned him into a cyborg. His name is a pun on "Uiro", a type of Japanese cake. 
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 three of his bio-warriors 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 & 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.
Techniques and Power LevelEdit
- Ki Blast - The most basic form of energy wave.
- Photon Strike - Dr. Wheelo unleashes yellow waves of energy at his opponent, causing a massive accumilation of damage.
- Planet Geyser - Dr. Wheelo's ultimate blast in Dragon Ball Z: Budokai Tenkaichi 3. Dr. Wheelo surrounds himself in a yellow aura and releases a massive red beam of energy capable of destroying a planet. Dr. Wheelo used this attack towards the end of The World's Strongest but was countered with Goku's Spirit Bomb.
- Flight' - like many other characters, Dr. Wheelo can fly.
Dr. Wheelo's cyborg body is shown to be far more powerful than most armored robots in the series. It was able to withstand Goku, Krillin, and Master Roshi's combined Kamehameha wave without receiving a single scratch. Although powerful as his metallic body was, it was no match for the incredible power of the Spirit Bomb.
His exact power was unknown and being an artifical fighter, it's unlikely he had a power level in the standard sense. However, since he could easily overpower Goku's regular Kaio-ken but was completely outclassed by Kaio-ken x3, Dr. Wheelo probably could be comparable in overall power to Vegeta in the Saiyan Saga.