Have you got what it takes? Mobius is under threat from the deranged Robotnik. The demented inventor is busy on a master plan building mega-robots. Only you and Sonic can stop him. Using your skill, speed and agility, you can help Sonic save the day. But think fast and move quickly, Sonic doesn't hang about and there's no time to waste. The future of Mobius depends on you!

Robotnik has created an evil duplicate of Sonic, and it must be stopped quickly!

Sonic's home in the Green Hill Zone is suddenly plagued by bizarre and dangerous weather.