Relive the your favorite memories of the Genesis era as you rocket Sonic through hair-raising loop-de-loops and dizzying dives as you gather up Rings and stop Dr. Eggman's schemes for world domination! Dr. Eggman has turned all of the animals into mechanical monsters, and it's up to the legendary hedgehog to save them. • Blast through Seven Zones including classics as Green Hill Zone and Labyrinth Zone, as well as the Special Stages in an attempt to collect the Chaos Emeralds! • Classic 2-D Sonic experience on the go for the first time on the iPhone and iTouch! • Pick-up-and-play accessibility: Play in Full Screen or classic “Arcade” look and play with just the touch of a button.