Sonic the Hedgehog 4: Episode II is a 2012 episodic platform video game in the Sonic the Hedgehog series, the sequel to Sonic the Hedgehog 4: Episode I. The game was developed by Dimps, with assistance from Sonic Team, and published by Sega. The game was intended to emulate the original Sonic the Hedgehog games on the Sega Genesis. (wikipedia.org)