Sonic Generations - Nintendo 3DS : Sega of America - Amazon.com
However, the rise of the emulator has changed the landscape. Xenia is an open-source project that has made massive strides in making Xbox 360 games playable on PC. For preservationists and gamers who no longer have functioning hardware (the "Red Ring of Death" having claimed many Xbox 360 consoles), emulation is the only way to experience these games. Sonic Generations 360 Rom
While the technical ability to play a "Sonic Generations 360 Rom" exists, the legality is a different matter entirely. Sonic Generations - Nintendo 3DS : Sega of America - Amazon