Shadow is not the first evil counterpart to Sonic to be introduced in the video game series. Predating him by several years is Metal Sonic, a Sonic-resembling robot created by Dr. Eggman.
Before Amy Rose saves the day, Sonic is clearly in trouble against Metal Sonic and his evil robots. This proves that Metal ...
Just remember, hold onto your rings and don't trust any evil doctors ... fourquel’s antagonist may be the Metal Sonics, and the movie could follow Team Sonic’s battle against a robotic ...