Sonic the Hedgehog 4: Episode I

Sonic the Hedgehog 4: Episode I (ソニック・ザ・ヘッジホッグ4フォー エピソードI Sonikku za Hejjihoggu Fō: Episōdo Wan?) is a 2010 episodic platform video game in the Sonic the Hedgehog series. The game was developed by Dimps, with assistance from Sonic Team,[7] and is intended to emulate the original Sonic the Hedgehog titles on the Sega Genesis.

Episode I was released in October 2010 for iOS, PlayStation Network, WiiWare and Xbox Live Arcade.[1] A release for Windows Phone 7 followed in June 2011,[2] for PC (via Steam) and Android in January 2012,[3][4] for BlackBerry PlayBook in July 2012,[5] and for Ouya in July 2013.[6] A sequel, Sonic the Hedgehog 4: Episode II, was released in 2012.