A blue hedgehog with supersonic speed must rescue animals from being turned into robots by a mad scientist. Doctor Robotnik is an evil and mad scientist who only had one destiny, taking over the whole world and to do this he needs to collect all six chaos emeralds which are located on the South Island. The game follows Sonic on his mission to rescue the Animals of South Island from the evil scientist Dr. Robotnik, who is turning the Animals into Badniks during his search for powerful relics.