Sonic Unleashed will offer a re-defined experience for fans and newcomers of the franchise alike by combing picturesque & detailed scenery, an expansive world with multiple paths to choose from and dynamic viewpoints for an immersive and renewed gaming atmosphere. Along with seamless 3D to classic 2D camera transitions, the game is built on a powerful, new proprietary "Hedgehog Engine," which introduces impressive lighting abilities and new technology tailor made for Sonic's new speed capabilities. Under development for approximately three years, the Hedgehog Engine will help to produce a visually rich next generation look and feel with elements of classic Sonic gameplay components.