Core Five Nights at Freddy's Series
Main plotline by Scott Cawthon and partnered game companies
Not what you were looking for? See Endoskeleton (disambiguation).

A bare endoskeleton can be seen in the Prize Corner and Left Vent, though it never attacks the player. There are some interesting fan theories about which animatronic this endoskeleton belongs to.
Five Nights at Freddy's: The Freddy Files, page 43[1]

Endo-02 is an endoskeleton designed for the withered animatronics and some toy animatronics in Freddy Fazbear's Pizza during the 1980s era. The Five Nights at Freddy's 2 game marked the extra suitless endoskeleton's first debut.

Physical Appearance

This endoskeleton seems much detailed in appearance when comparing to its another variant Endo-01. Shaded with series of gray and silver colors, it sports with three rib-like cages, cylinder limbs with spiral springs, a wide mouth filled with squarish teeth, and flat, three-toed feet.

Its overall appearance bears a lot of striking similarities to Withered Foxy's endoskeleton due to its nearly identical body structures, with ears in exact same shape but facing in a different way. Endo-02 also has hazel-blue eyes similar to those of Withered Freddy's.

From the second game, its head is designed to feature tiny connective wires, containing wires for inside some parts of the limbs, and a bundle of long wires can be seen sticking out behind its back; apparently identifiable when at the Prize Corner. In Help Wanted, however, these are removed possibly in order to reduce the polycount.


Akin to other endoskeletons, Endo-02 has functional eyelids, joints, jaw, knuckles, and ears (which is not the case for Withered Chica and Toy Chica). They are created as inner skeletons for the older withered animatronic cast at first, and reused for the toy animatronics albeit Balloon Boy, JJ, and the Puppet.


Five Nights at Freddy's 2

Endo-02 appears to wander the restaurant at rare intervals, but can be encountered as early as Night 1 and onward. It has 1/10 chance to appear in the Prize Corner (CAM 11) and 1/1000 chance to be seen in the Left Air Vent (CAM 05). Endo-02 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. It will not attack or jumpscare the player.

Endo-02 can sometimes block Withered Bonnie, Toy Chica, and Balloon Boy from entering the Left Air Vent, giving it a negligible impact on gameplay.

Five Nights at Freddy's VR: Help Wanted

Endo-02 reappeared in Five Nights at Freddy's VR: Help Wanted and was seen twice. In the FNAF 2 level mode, Endo-02 has a brief role very divergent to its second game appearance, as Endo-02 has a rare chance to appear standing at the right side inside the Office for the whole night. In Mangle's Vent Repair level segment, Endo-02 can occasionally appear under the floor.

From the Curse of Dreadbear DLC, Endo-02's head appeared in the Spooky Mansion level's "Build-A-Mangle" segment where it is randomly used for creating a mangled animatronic entertainer.

Five Nights at Freddy's 2



Five Nights at Freddy's VR: Help Wanted





Endo-02 as seen in The Silver Eyes graphic novel with Henry Emily.

  • The style of Endo-02's head is very similar to the Kismet robot, a robot created in the late 1990s at Massachusetts Institute of Technology by Dr. Cynthia Breazeal.
  • There is an endoskeleton who briefly appeared over few times in The Silver Eyes novel from the franchise's novel trilogy universe, designed by Henry Emily. In the graphic novel adaptation, the endoskeleton was depicted as Endo-02 itself.
    • The Suicide Bot, as depicted from the graphic novel, also bears a nearly identical resemblance to Endo-02. The only difference is that the Suicide Bot is featured with a sharp carving knife for its right hand.
  • Despite Endo-02 serving as an endoskeleton for some of the toys and withereds, it was shown that Toy Bonnie, Toy Chica, and Toy Freddy, have skinny-thin almost cylinder shaped like endoskeletons bearing no resemblance to Endo-02. This would mean that Mangle is the only toy animatronic to have a proper endoskeleton representing Endo-02.

Five Nights at Freddy's 2

  • Endo-02 is featured in update patch 1.03.
  • Endo-02 did not appear in the original mobile devices upon first release. It was later re-added in the remastered port.

Five Nights at Freddy's VR: Help Wanted

  • It is entirely possible that Endo-02 is a backup endoskeleton for Mangle. This is supported in the code as Endo-02 has two model files named "MOD_Endo2" and "MOD_Endo2_PoseForMangle."
  • Even though Endo-01 and Nightmare Endo appeared in the Gallery mode, Endo-02 was never included.
  • Revealed when using the model program, Endo-02 is evidently a reused model of Withered Freddy's endoskeleton, except that the slightly droopy-looking eyes are fixed.


  1. The Freddy Files | Five Nights at Freddy's 2 | Page 43
Core Series Characters
Standard Animatronics
Bonnie (ClassicWithered)Chica (ClassicWithered)Foxy (ClassicWithered)Freddy Fazbear (ClassicWithered)
Mediocre Melodies
Happy FrogMr. HippoNedd BearOrville ElephantPigpatch
Balloon BoyJJMangleToy BonnieToy ChicaToy FreddyThe Puppet
BalloraBidybabBonnetBaby (CircusScrap)ElectrobabFuntime ChicaFuntime Freddy / Bon-BonFuntime FoxyLolbitMinireena
LeftyRockstar BonnieRockstar ChicaRockstar FoxyRockstar Freddy
Glamrock ChicaGlamrock FreddyMontgomery GatorRoxanne Wolf
Springlock Hybrids
FredbearSpring Bonnie
Endo-01Endo-02EnnardMolten FreddyYenndo
Dee DeeEl ChipMoon AnimatronicMusic Man
Supernatural Animatronics
Phantom BBPhantom ChicaPhantom FoxyPhantom FreddyPhantom ManglePhantom Puppet
NightmareNightmare Balloon BoyNightmare BonnieNightmare ChicaNightmare FoxyNightmare FredbearNightmare FreddyNightmare MangleNightmarionnePlushtrapDreadbearGrimm FoxyJack-O-BonnieJack-O-Chica
Animatronic Skins
Arcade AnimatronicsCircus AnimatronicsHeatwave AnimatronicsHoliday AnimatronicsWasteland Animatronics
Blacklight AnimatronicsGolden FreddyWilliam Afton (SpringtrapScraptrap)
AnimatronicsMinor AnimatronicsScrapped AnimatronicsAnimatronic Delivery Catalog
AI Voices
Female Computer VoiceHandUnitTutorial Unit
Candy CadetCoffeeEgg BabySecurity Puppet
Security Guards
Fritz SmithJeremy FitzgeraldMichael AftonMike SchmidtSecurity Girl (SB)Security Guard (FNaF3)
Audio Recorders
HenryPhone DudePhone GuyTape Girl
Other People
Child Protagonist(s) (FNaF4)William AftonTechniciansVanny
Re-animated Objects
PlushBabyTrash and the Gang
GlitchtrapHelpyOld Man Consequences
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