The Amalgamates are unstable, fused creatures from Undertale in the Underworld in the true lab that are grotesque looking and oddly looks familiar (possibly due for some of them that are previously unfused are family members). They are immortal, meaning only the true pacifists that enter the lab will pass it without a problem and are unstable and sort of slimy. They are unintentionally created by this same b4stard that created Megaton. They also regularly eat at McDonald's, but the Muricans are too busy adding red dye 40 to their food or screaming for their fries to notice.