Sega Japan kicked off 2012 with the formal announcement of the Japanese version of Sonic the Hedgehog 4 Episode II.
The sequel to the 2D Sonic throwback will be released some time in 2012 on PlayStation 3, Xbox 360, iOS, Android and Xbox Live on Windows Phone 7 platforms. The game promises improved physics and animation, along with the return of Sonic sidekick Tales.
Sega also shared a Japanese language version of the game's announcement teaser trailer. Take a look below.