Sonic the Hedgehog is a Sega icon, whose games now span across almost every current game console, including mobile. He officially became the Sega mascot in 1991, replacing Alex Kidd.
The first Sonic the Hedgehog game was included as a pack-in with the Sega Genesis console. It greatly helped the Genesis sales, and for a little while sales kept on par with the Super Nintendo. Eventually, Sonic the Hedgehog 2 was included free with the Genesis console.
Sonic has had many spin-offs over the years including: Sonic Spinball and Sonic All-Stars Racing.
Sonic the Hedgehog fan page. Of course.
Streets of Rage 4? Yes... no... maybe so?
Ecco the Dolphin: where did he go?