Sonic Generations (2011)
Sonic Generations is a video game that celebrates 20 years of Sonic the Hedgehog history. It features both classic side-scrolling 2D environments from 1991 and modern 3D style levels, with each incarnation of Sonic having their own special move. An interactive menu system allows players to explore Sonic's universe with favorite characters and hidden treasures being revealed as they progress through the game.