We have a new trailer movie for Sonic Generations, a new video game in development to celebrate Sonic the Hedgehog's 20th Anniversary. Set across three defining eras from 20 years of Sonic the Hedgehog video game history, the instantly recognizable environments of Sonic Generations have been re-built in HD and are now playable in both classic side scrolling 2D from 1991, as well as modern 3D style found in Sonic's most recent adventures. Each incarnation of Sonic in Sonic Generations comes complete with his trademark special move, Spin Dash and Spin Attack for Classic Sonic, and the Homing Attack and Sonic Boost for Modern Sonic. A new interactive menu system allows for complete immersion in Sonic's universe with favorite characters and hidden treasures gradually being revealed throughout the game. Sonic Generations will speed into stores for Xbox 360, DS and PS3 in November 2011.