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.
Vectorman
Vectorman is a series of run and gun platform games developed by BlueSky Software and published by Sega for the Sega Mega Drive/Genesis. The first game in the series was released on October 24, 1995 in North America and on November 30, 1995 in Europe. The games have since appeared on several game compilations, including the "Sega Genesis Collection" for the PlayStation 2 and PlayStation Portable, the "Sonic Gems Collection" for the Nintendo GameCube, and "Sonic's Ultimate Genesis Collection" for Xbox 360 and PlayStation 3. "Vectorman" was added to the Wii Virtual Console on February 27, 2007, in Japan and April 5, 2007, in Europe, and in North America on September 22, 2008. It was also released on the digital distribution service Steam as part of the "SEGA Genesis Classics Pack" and as a standalone title. Vectorman was ported to iOS and Android in 2018 as part of the Sega Forever service.