Story
South Island: a veritable treasure trove of ancient ruins and jewels. Somewhere on the island sleep the six Chaos Emeralds, which hold legendary and unlimited power. The emeralds distribute life energy to all things, enabling the advancement of technology. Unfortunatley that technology has fallen into the wrong hands. Dr. Ivo Robotnik - freaky egg-shaped evil genius guy,  he is out to put and end to the long-time nemisis of good. In order to do this, he plans to utilize the power of the Chaos Emeralds..., but there is a catch, the Chaos emeralds hide within an alternate dimension. The dimension is a torsion caused by the circular movement of South Island. In order to help him Dr. Robotnik has set up a base on the island and enslaved its inhabitance inside robots called badniks, all except sonic who was too fast to be caught and vowes to put an end to Robotniks evil plans.