Metal Sonic

Metal Sonic is a powerful automaton created by Dr. Eggman that was based on his nemesis: Sonic the Hedgehog. He was designed to be the ultimate match for the speedy hedgehog, and has proven to be an effective adversary against Sonic on several occasion. While loyal to Dr. Eggman to an extent, he will sometimes disobey his orders should it conflict his own goal at defeating Sonic. Numerous versions of Metal Sonic have been produced many times, successive units usually being destroyed in battle against Sonic and any other enemies he comes across. Nevertheless, each successive model becomes more dangerous to confront with each improvement made to his model, its threat potential only increased after being joined by other similar automatons as part of the Metal Series.

Appearance
Metal Sonic takes the image of his adversary: Sonic the Hedgehog, hence the reason why his color pallet is primarily blue. He has a yellow circular depression in his chest with a black center (which mirrors the peach-colored skin on Sonic's chest), while his head has metal fins resembling Sonic's quills, with a pair of triangular "ears" on his head. Metal Sonic has a muzzle, shoulder plates, upper arms, legs, and fingers that are made out of a silvery metal; the palms of his hands are black, while the back of said hands are square yellow plates. His forearms and lower legs have a blue color like his head and torso, while he has red feet with white stripes which were designed to resemble Sonic's shoes; his optic sensors (basically his eyes) have black sclera and red irises.

Personality
Metal Sonic is often viewed as a cold, merciless, and even mindless in the vast majority of models that have been seen, even being silent during battle. For some of his models, speech was not even an option, most notably the v3.5, v3.6, and v3.7 models; the v3.3 model only had a radio mouthpiece for Eggman to speak out of. The v3.8 model was equipped with a voice and a more developed personality program, which expressed cold outrage at the losses of his previous models and a single-minded desire to destroy Sonic. While he also briefly expressed rebellious tendencies at the idea of being ordered to attack another enemy, Eggman's safeguards quickly rendered it docile. The more recent v3.9 model kept the voice and personality programming of the previous design, while it was able to express it's ruthless personality more.