An Android Digimon with a mechanized upper body. The MetalGreymon of File Island were able to dramatically prolong their vital functioning through self-modification, although their natural bodies have turned blue from the stress. By contrast, a true MetalGreymon is a successful Digivolution from a Greymon, and is an extremely powerful Android Digimon. To successfully Digivolve into a MetalGreymon, a Greymon must face several mighty foes and defeat them in battle. A MetalGreymon’s attacks are said to be as powerful as a nuclear warhead, capable of completely obliterating lower level Digimon. Its special moves include Trident Arm, by which it attacks with its reinforced Chrome Digizoid arm, and Giga Destroyer, an attack where it fires bionic missiles from a hatch that opens in its chest. It can also shoot a scorching energy wave from firing ports in its midsection with the special move Giga Storm.