Which game did "Sonic The Hedgehog" make his first appearance in?

Actually, the statement that Sonic the Hedgehog made his first appearance in the game "Rad Mobile" is incorrect. Sonic the Hedgehog actually made his first appearance in the game "Sonic the Hedgehog," which was released for the Sega Genesis console in 1991. In this popular game, Sonic is an anthropomorphic hedgehog that must defeat the evil Dr. Robotnik and save the animal inhabitants of South Island. "Rad Mobile" is a different game altogether and does not mark Sonic's initial introduction to the gaming world.