Fan Casting Sonic the Hedgehog 2 rewritten

After settling in Green Hills, Sonic and Tails are eager to prove that they have what it takes to be true heroes. Their tests come when Dr. Eggman returns with a new partner, Knuckles, in search of a mystical emerald that has the power to destroy civilizations. Sonic and Tails team up with a new friend, Amy, and together they embark on a globe trotting journey to find the emerald before it falls into the wrong hands.