Guessed by Anfebious
There's not much to say about this one - it's Sonic, and Sonic was a big thing in my childhood. This game was pretty awesome - the music was great, the visuals were very pretty for its time, the gameplay was fast and tight with precise controls (unlike Mario's), and the level design was great. There's nothing really wrong with this game, other than (ugh) that Labyrinth zone. Seriously, screw that place.