Sonic Generations

Set across three defining eras from 20 years of Sonic the Hedgehog video
game history, the instantly recognizable environments of Sonic
Generations have been re-built in stunning HD and are now playable in
both classic side scrolling 2D from 1991, as well as modern 3D style
found in Sonic's most recent adventures. Each incarnation of Sonic in
Sonic Generations comes complete with his trademark special move, Spin
Dash and Spin Attack for Classic Sonic, and the Homing Attack and Sonic
Boost for Modern Sonic. An innovative new interactive menu system allows
for complete immersion in Sonic's universe with favorite characters and
hidden treasures gradually being revealed throughout the game.