Just like every morning has it's night, every hero must have a rival or a villain, whichever one you want to choose. And it's no different for Sonic's rival to be in the upcomin Sonic Generations game. Shadow the Hedgehog was just introduced by Sega and will be playing a significant role in the upcoming game.
I wonder if he'll be shooting stuff and riding on his motorcycle at all during the game.
My nostalgia boner is gone.