It is the malevolent "night" ai of the Daycare Attendant, the animatronic who patrols the Superstar Daycare. Moon wishes to keep the lights off, and Sun wishes opposite. He wants to punish kids for "staying up past their bedtime" and is often Mischievous and aims to scare rather than hurt. He has a great distaste for messes and feels responsible for cleaning them like his daytime counterpart does, but to a more demented degree. If the lights are on, he'll turn into Sundrop.