Zoe, also referred to as Ruler of the Dark Realms, is a divinity from the Monster Prom world who appears in a few secret endings of the game. She can be obtained from a mysterious totem from the shop, taking the form of a horrifying mass of true horror, with several neon green eyes and horns, like a scary demon from hell. Getting a more human-like form, Zoe looks less creepy, but still has some details in her appearance, which make players feel afraid. By the way, there's a tentacle on the place of her right arm that makes her clearly recognizable among other monsters. A fanart Monster Prom cursor with the enigmatic Zoe and a Tentacle.
