-Were you looking for Adventure Endo-01's counterparts: Adventure Endo-2, Mendo, Mad Endo, Quad Endo, or Adventure Endoplush? Because look at him! - Endo-01's loading message Endo-01 first appeared in Five Nights at Freddy's as an endoskeleton in the backstage room of the pizzeria. Endo-01 has a light grey torso and a dark grey head. He has a full set of teeth and blue eyes. He also has two long arms and a large red button on his chest. Just like most of the other FNaF 1, 2, and 3 characters, he has 4 fingers and 3 toes. Endo-01 has three attacks -