Sonic the Hedgehog different media including animation, comic books, and a Hollywood film. The first "Sonic" game, "Sonic the Hedgehog", is a platform game released in 1991. Players control the anthropomorphic blue hedgehog Sonic, who can run and jump at high speeds using springs, ramps, and loops. Sonic must stop Dr. Robotnik from taking over the world using the Chaos Emeralds. "Sonic the Hedgehog 2" (1992) increased the overall size and speed of the series' gameplay and was the second best-selling Genesis game. It introduced Sonic's sidekick and best friend, Miles "Tails" Prower, who followed Sonic throughout the game, and allowed a second
Sonic the Hedgehog 4: Episode I Sonic the Hedgehog 4: Episode I "Episode I" was released in October 2010 for iOS, PlayStation Network, WiiWare and Xbox Live Arcade. A release for Windows Phone 7 followed in June 2011, for PC (via Steam) and Android in January 2012, for BlackBerry PlayBook in July 2012, and for Ouya in July 2013. A direct follow-up, "", was released in 2012. "Sonic the Hedgehog 4: Episode I" is a 2D side-scrolling platformer reminiscent of the original "Sonic" games for the Sega Mega Drive/Genesis. Players control Sonic the Hedgehog, using mechanics such as the original Spin Dash and power-ups such as