Kendeyll
The Multiverse is quite an expansive space. Well, what if I told you about a world where Mecha Sonic was actually Organic and was much more powerful than even Sonic the Hedgehog himself? This organic being was a clone of Sonic using his DNA to create the perfect life form of overwhelming strength and will.
However, due to him being a clone, he didn't desire to be kept in a cage and a slave, and Sonic's DNA within him craved freedom. After a crushing defeat, Mecha finally snapped and decided to leave the Eggman Empire to find his own path.
This eventually led him to a confrontation with Sonic, the original, which allowed him to come to a realization and understand what he truly wanted. He was Sonic and now he wanted one thing to become the most powerful being in the universe.