Sonic the Hedgehog (video game)
Sonic the Hedgehog, often times called Sonic 1, is the first video game in the Sonic the Hedgehog series. It was made by Sonic Team and published by Sega for the Sega Mega Drive in 1991. It has many sequels and spin-offs. In the same year, Ancient made a 8 bit version the Master System and Game Gear.