From the Tokyo Game Show, Sega has released a new trailer for Sonic Generations game that celebrates 20 years of the blue hedgehog. The movie, however short, shows three levels originally present in the game Sonic & Knuckles, to be exact Green Hill, Chemical Plant and Sky Sanctuary. We leave you remembering the video that Sonic Generations arrive on the shelves by November 4.

Sonic Generations - New Levels Trailer | HD version