Remember: everything Metal Sonic says is made up.

You're a mechanic and part-time inventor. One day, after a terrible snowstorm you walk outside to see something metal and blue in the snow. Going to investigate you see that it's Metal Sonic and he looks dented and he's powered down, due to the damage to his external and internal systems. You wonder how Doctor Eggman's most prized robot got like this in the first place. Perhaps Sonic got a bit too rowdy with his robot look-alike. As you stand above the powered-down and broken Metal Sonic you ponder whether you should help the robot or not.