Added to the update 1.03 of Five Nights at Freddy's 2, the Endoskeleton, known as Endo 02 in FNaF World, appears to wander the restaurant at rare intervals, but can be encountered as early as Night 1. It appears in the Prize Corner and Left Air Vent. The bare endoskeleton can be seen at any time, but very rarely, and the chance goes up when the Music Box runs out, before The Puppet leaves the Prize Corner (CAM 11). It will not attack or jumpscare Jeremy.
- Some theorize that the perfect match for the bare endoskeleton is the empty suit that is Golden Freddy, or a spare endoskeleton. However, both of these claims are unconfirmed.