Sonic Unleashed - Xbox 360 Sonic's World Transformed: Sonic maintains his high-speed abilities during the day, but at night he is transformed into a mysterious dark form with incredible never-before-seen abilities including 3D-action brawling and amazing agility. Tight Navigation and Speed Control: Players accelerate to super speed with 'Sonic Boost' by collecting rings to increase Sonic's 'Ring Energy.' Powerful New Engine and Cinematic Graphics: With its new proprietary Hedgehog Engine, Sonic Unleashed enhances the classic 2D perspective with mind-blowing 3D stages. Enhanced and Expanded Environments: Many unique and fascinating continents offer the player an opportunity to save the world in a dynamic, high-speed experience. Sonic the Hedgehog returns in this platform for Xbox 360 with 2D and 3D elements Different style of gameplay depending on whether it is day or night Nine beautiful levels based on real-life locations Sonic changes from a Hedgehog to a Werehog Classic elements including loops and corkscrews