Where sonic hedgehog be seen at

He's owned by SEGA and the first game system he was ever on was the SEGA Genesis, in the early 1990's they used to be alot of Sonic games, his first game is called ''Sonic The Hedgehog'' later, they came out in sequels, Sonic 2, Sonic 3, Sonic and Knuckles, and Sonic CD (Get the SEGA CD add-on to play Sonic CD) In the future, he's been seen at, ''SEGA Saturn,Dreamcast,PS2,Wii, and the Xbox360