Mechani-Kong's name comes from the word "mechanical" and the "Kong" part of King Kong's name.
Mechani-Kong was both designed and built by the international criminal, Dr. Hu, to mine the radioactive Element X from the Arctic underground, but the robotic ape failed his creator, the radiation of Element X damaging his controls. However, Dr. Hu came up with another plan to abduct the real King Kong and using Mechani-Kong, hypnotize Kong to mine Element X instead. However, the combination of Kong’s mind and the cries of Nurse Susan Watson, who Kong had a liking for, were able to overcome the hypnotism and Kong escaped to Tokyo, with both Mechani-Kong and Dr. Hu in hot pursuit.
In Tokyo, King Kong and Mechani-Kong battled up the side of Tokyo Tower, both monsters getting their shots in on one another. In the end, an attack back on Dr. Hu's ship crippled Mechani-Kong's controls and turned the tide of battle in Kong's favor. The crippled Mechani-Kong then fell from the tower, crashing into the street below and shattering into several pieces.
ComicsMechaGodzilla III under the control of Doctor Oniyama to fight Godzilla in the Kodansya Godzilla manga, but both failed.
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