The Blue in Black n White

Every mobian grows a third eye on their forehead, the problem? The normal eyes are Black and White, any other colour and those mobians get hunted and killed or if shown ability then experimented. When Sonic was young he had grown his eye and it turned out blue and it came with insane speed ability, His parents tried to hide him but got killed. Sonic is older now and when all goes bad to the world from a human who gets his hands on the chaos colour eye, it's Sonic's and a few others who can save the world they had been rejected in.