I don't own anything in this story. Sega does, though.
Sonic's story: act 1
Sonic was on vacation in the beaches of Emerald Coast. "Jeez, it seems like everyone needs my help recently," Sonic sighed as he sat in his beach chair, "Chaos, Shadow, Metal Sonic, Even the E-100 series! It seems the world plunges into danger whenever I try to relax! But this time, I will get my well deserved vacation." Unfortunately, Sonic was wrong.
Meanwhile, Eggman was in his lab working with the parts of Metal Sonic. "You turned on me, Metal. You imprisoned me in my own fortress while you went off trying to kill my enemies." Eggman chuckled as he removed a few microchips from Metal's processor, "You and all my other creations. But now I know the answer. I have been generous with you robots. I have given you a mind to think and feel with. But after this whole ordeal, I don't believe you deserve free will!" Eggman smashed the chips he removed against a wall. With your new features and lost will, you will destroy Sonic. Metal Sonic opened his eyes.
"DESTROY SONIC THE HEDGEHOG"