The game Sonic the Hedgehog was made June 23rd 1991
Possibly a fan made game combined with Sonic Riders and the unreleased game, Sonic Extreme.
Sonic was made in 1992 in his first game sonic the hedgehog.
It was actually made for game system
Sonic is a character in a video game made by Sega, which is a Japanese company.
It is a video game.
A boy (Sonic's first game is not really Sonic the hedgehog it is a racing game & Sonic is an air freshiner and it was made a few months ago before Sonic the Hedgehog was made in 1991)
A video game character made by SEGA.
Sonic R. Made in 1997 for the Sega Saturn and PC. Also in Sonic Gems Collection for the GameCube and PlayStation2.
Sonic '06 was made to celebrate Sonic's 15th anniversary. But since Sony rushed Sega to get it out by Christmas, you could say the game is incomplete.
Because Sonic X Isn't Being Made Anymore And Not That Many People Liked It.
Soon that will happen because the people who made them will run out of ideas