Polkadi

Sometimes, I think of what a SatAM episode would be like with Metal Sonic...

I've imagined that, at first, it would just be a robotic clone of Sonic made by Robotnik, personality and all. Snarky, quips a lot, all that. But instead of following Robotnik's orders, he instead wants to show off how superior he is to Sonic.

Also, he used to be able to talk, but all the quips and such along with his hate for Sonic drove Robotnik to a point that he bolted on a muzzle. And then he becomes the Metal Sonic we all know and love, silent with teetering rage for the hedgehog.