As the sequel to the original Sonic the Hedgehog, Sonic the Hedgehog 2 was a blockbuster for Sega in the console wars against Nintendo and its iconic character, Super Mario. This game improved on everything from the original -- cinematic music, larger zones with colorful graphics, better mechanics, and of course, the introduction of Tails.
With the addition of Tails, a new feature was introduced to the game -- two-player mode. At the time of the game's release, this was revolutionary for the platformer genre. While the feature received mixed reviews, it set the stage for many Sonic games to come.
With a total of 6 million copies sold, this release's legend grew over the years from the momentum of the original, and is remembered as a worthy successor in the series.