The latest user-generated triumph is the Unleashed Project , a massive port of some of the daytime (read: good) levels from the console-only Sonic Unleashed.

No wait, that's not simple at all. RPS reports that the Sonic Generations - Unleashed Project includes most of the day stages from Sonic Unleashed, has improved controls and runs at a smooth 60FPS.

Someone out there made a first-person mod for Sonic the Hedgehog: Sonic Generations, and it might make you feel a little nauseous.