Metal Sonic

Creation
He was created by Dr.  Robotnik  Eggman on a early saturday morning after the events of Sonic The Hedgehog. Eggman was eating breakfest and saw instuctions on the back of a cereal box on how to build a robot. Thus, Metal Sonic was born.

Early Years of Creation
During the events of Sonic CD, Sonic Generations, and Sonic The Hedgehog 4, Metal Sonic's main purpose was to destroy Sonic. He kidnapped Amy (Which Sonic only saved because he had to) He also wanted to get back at him for the race they had to. In Sonic The Hedgehog 4 he was called by Dr. Robotnik to destroy Sonic... that's all there is to it. In Sonic Generations, he fights/races Sonic all over again.

Later Years
A few years later during the events of Sonic Heroes, he finally had a real plan: DItch the fat man and trick everyone. He became powerful and gained a Super Form that Super Sonic fought... with Tails and Knux in bubble thingys. He went missing after defeat to return in about 4 years or so.

During Sonic Free Riders, he re does some of his plan from this time, but no one cares about his stupid idea.