The Joy of X! Sonic The Hedgehog (for 10 years and over), the Sega classic that changed the way games are played, has come to the Xbox 360 with exciting new features! For the first time, you'll be able to save your high scores and progress as you rocket through the seven gravity-defying stages that started it all. After you outrun Dr. Robotnik and his badniks in Original Mode, race through the famous loop-de-loops even faster with Sonic's trademark Spin Dash in Anniversary Mode which celebrates Sonic's 15th birthday.