Following on from those impressive screenshots of Sega's Sonic the Hedgehog 4: Episode II from last week comes this trailer of the game in action.  Check out Sonic and Tails working together as a team as they traverse snowy mountains, rickety carnivals, and other hazardous zones in pursuit of Metal Sonic.  It's impressive stuff and appears to be a definite improvement over Episode I.  The game has a release date of Spring 2012 and is headed to the Microsoft Xbox 360, Sony PlayStation 3, PC, iOS, and Android.  If I had to take a wild guess, I'd venture that we'll also see it for Nintendo's Wii U toward the end of the year.  That's just an educated assumption on my part, of course.