A brand new high speed action adventure in which Sonic the Hedgehog races through incredible theme park inspired worlds to rescue a colourful alien race from the clutches of Dr Eggman. An extraordinary amusement park has been seen orbiting around the home planet of Sonic the Hedgehog, and rumours are spreading that an alien race of Wisps, who have a unique colourful energy, are being held captive there by the evil Dr Eggman.