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Sonic & Robotnik are at it again. The diabolical Dr. Robotnik has created a robot factory and it's up to Sonic to stop the metal mutants. Sonic works his way through maze-like rooms in an attempt to remove the Chaos Emeralds, the factory's only power source. Team up with Sonic through 12 levels of fast and furious action as he tries to put Dr. Robotnik out of business for good!