Sonic the Hedgehog 2 (8-bit video game)

 Sonic the Hedgehog 2 is a 1992 platform game developed by Aspect and published by Sega for the Master System and Game Gear. The game is a sequel to the Master System/Game Gear title Sonic the Hedgehog and follows the titular character Sonic as he attempts to rescue his friend Tails and all the island's animals from the villainous Doctor Robotnik. The gameplay is based on traversing several levels while collecting gold rings and attacking enemies. Sonic the Hedgehog 2 was met with critical acclaim, with reviewers praising the visuals and gameplay while criticizing the high difficulty. In 1993, a sequel, Sonic Chaos, was released.

As the game was released before the Sega Genesis version, it represents the debut of character Tails, who would become a mainstay in the series. Whilst the Master System version of the game was not initially released outside Europe and Brazil, it later become available worldwide following its release on the Wii's Virtual Console in 2008.