Our hedgehog's tale begins as Sonic's animal friends start disappearing from South Island. Soon after, Sonic discovers that the evil scientist Dr. Eggman has been kidnapping them and turning them into robots - all as part of a plot to collect a legendary treasure known the Chaos Emeralds. Sonic decides it's up to him to save them, and embarks on a quest to free his friends. As Sonic and Eggman clash throughout many different zones, Sonic eventually pursues Eggman to the Final Zone, where the first in many epic battles between them begins. In the end, Sonic is victorious, and Eggman's mecha flies away badly damaged. A happy ending secured, Sonic returns to Green Hill Zone and reunites with his friends.
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