Metal Sonic, Sonic Wiki Zone

Metal Sonic (メタルソニック, Metaru Sonikku?) is the secondary antagonist of the Sonic the Hedgehog series. He is an evil, ultra-high performance, very advanced Badnik version of Sonic the Hedgehog that was created as a secret weapon by Dr. Eggman for the sole purpose of destroying the hedgehog. Modeled with extreme accuracy after Sonic, Metal Sonic not only resembles his template, but can also imitate his moves and achieve speeds matching and even exceeding the hedgehog's own. The brainchild of Eggman

Bosses - Sonic Mania Guide - IGN

Hyper Metal Sonic, Sonic Wiki Zone

Metal sonic, Wiki

Metal Sonic (White Park Zone), Sonic Wiki Zone

Metal Sonic, Sonic Wiki Zone

Titan Metal Sonic, Sonic Wiki Zone

Metal Carrier, Sonic Wiki Zone

List of Sonic the Hedgehog characters - Wikipedia

Metal Sonic, Sonic Wiki Zone