Sonic the Hedgehog (1991 video game) different from Sonic the Hedgehog Genesis
Sonic the Hedgehog Genesis
To mark the game's fifteenth anniversary, a port for the Game Boy Advance, Sonic the Hedgehog Genesis, was released on November 14, 2006. While the port is mostly identical to the original, it includes several new features not seen in the original Genesis release, such as the ability to save game progress and the inclusion of the Spin Dash move. This version, unlike others, received poor reviews, with a Metacritic score of 33/100. The chief complaints concerned its poor conversion to the Game Boy Advance, resulting in a bad performance and poor implementation of the original music and gameplay.As a response to the poor reception and claims that the system could not handle the original game, Simon "Stealth" Thomley, who later assisted with the development of the 2013 mobile port, released an unofficial, proof-of-concept version of Sonic the Hedgehog for the system. The unofficial version contains a complete Green Hill Zone and two special stages, as well as Tails and Knuckles as playable characters.
not same as not identical to distinct from separate from unlike