Shadow Androids

The Shadow Androids are robots—possibly biomechanical—that bear a nearly identical appearance to Shadow the Hedgehog, rivaling many of his abilities. They are able to fire missiles from their own hands, as well as harness the capability of speed and quick combat. As per his  "End Reality" Scheme , Eggman Nega begins overseeing the creation of more of these androids (after his ancestor stopped making them) during the "Dimension" saga, by blackmailing Professor Membrane into constructing and transporting them to the planet Blorch, in order to stop the reconstruction of the Death Egg and prevent the return of the real Shadow. The androids themselves obey Nega's orders without question, and continually persist in their missions regardless of how many of their number fall in battle.

(editing shall recommence soon)