During the period when Dr. Eggman's Operation: Clean Sweep altered reality and reshaped Mobius, the Star Light Zone was a city-like area that Sonic and the Freedom Fighters arrived at after traveling through the Labyrinth Zone. The sky was dark and many stars could be seen. It is unknown if the time of the day had shifted to night by then, or if it is always night in the zone. Sonic and the Freedom Fighters had to travel through here to find Dr. Eggman. It eventually lead them to the Scrap Brain Zone. (StH:#227)