Sonic the Hedgehog
Due to the success of "Sonic" games on the Sega Genesis, the series was introduced to the Master System and the Game Gear. Sega began by releasing "Sonic the Hedgehog", a 2D platform game, in 1991. The game featured Sonic's ability to run and to jump at high speeds like its Mega Drive/Genesis counterpart but with notably different level design and music. Sega later released "Sonic the Hedgehog 2" another 2D platform game, in 1992. The game differed from its Genesis counterpart with different levels and music and by not including a "spin dash" maneuver. It also featured a different storyline in which Doctor Robotnik kidnaps Tails, who is non-playable in the Master System/Game Gear version. "Sonic Chaos"/"Sonic and Tails" (Japan), released in 1993, was similar to the earlier two Sega Master System/Game Gear "Sonic" games, but featured Tails as a playable character. A sequel, "Sonic Triple Trouble"/"Sonic and Tails 2" (Japan), a 2D platform game, was released in 1994 for the Game Gear and introduced a new character, Nack the Weasel, who, along with Knuckles and Doctor Robotnik, raced to collect the Chaos Emeralds. One of the last games for the Sega Game Gear, "Sonic Blast", was released in 1996 and featured prerendered sprites.
Sonic Spinball
The game has been rereleased on 11 different platforms. The Genesis version of the game has been rereleased on the "Sonic Mega Collection" compilation for the Nintendo GameCube, PlayStation 2, Xbox and PCs, "Sonic's Ultimate Genesis Collection" for the Xbox 360 and PlayStation 3, and multiple iterations of the "Sega Smash Pack" series of compilations. The Game Gear version appears as an unlockable game in "" for the GameCube and PC, as well as "Sonic Gems Collection" for the GameCube and PlayStation 2. The game was intended to be included in the "Sonic Classic Collection" for the Nintendo DS, but was cut for unspecified reasons. The Genesis version was released on the Wii's Virtual Console on March 12, 2007 in North America and April 5, 2007 in Europe. An emulated form of the game was also made available for iOS devices via Apple's App Store in 2010, but was later removed along with other Sega titles in 2015. On September 13, 2010, it was released on Steam.