Sonic first came about on 06/23/1991, and continued his adventures in Sonic 2(11/24/1992), and Sonic 3(01/24/1994) with much of the same graphics/gameplay/style. In Sonic 2, Sonic's sidekick Tails was introduced and in 3 his enemy now ally Knuckles was introduced. Sonic revolves around the evil Dr. Robotnik, the Chaos Emeralds(which help him turn Super Sonic), and the ongoing struggle between good and evil. Sonic continued on with his adventures in Sonic and Knuckles, Sonic 3D Blast, Sonic CD, Sonic Adventure and Sonic Adventure 2, and is getting ready for another in Sonic Heroes. So, in some ways Sonic is a legend in video gaming history. He is what got Sega on the map and help revolutionalize gaming today..