Celebrate 20 years of Sonic the Hedgehog with Sonic Generations. Sonic Generations is the highly anticipated game that allows players to relive the classic Sonic experience as both Classic Sonic and Modern Sonic. The game features levels from different eras of Sonic history, bringing together both 2D and 3D gameplay styles. Players will travel through time, encountering familiar enemies and bosses as they help Sonic defeat Dr. Eggman and restore the world. The game is published by SEGA and developed by SEGA. It was released in the UK on 01 Mar 2013.