"Rooftop Run, also known as Spagonia, is one of the stages of the game Sonic Generations. This level is part of the original Spagonia from Sonic Unleashed. The stage was revealed at the end of the City Escape gameplay trailer with Modern Sonic flying through it. It was revealed once again in the Two Sonics Trailer with both classic and modern Sonic. It is one of the stages featured in the Modern era of the game."