Golden Ryder

Golden Ryder (referred to as Yellow Human/Kid in the first game's files) is one of the five antagonists and a special animatronic in Five Nights at Kasey's's.

He is a secret, golden colored version of Ryder who appears in the Office after a certain sequence of events are triggered.

Appearance
Golden Ryder appears to be a yellow colored variation of Ryder with missing eyes. As opposed toRyder's black ones though this may be the result of lighting.

His paws are facing palms up. It is also possible that there is an endoskeleton in the suit. If one looks at the arms, a few wires and parts of the endoskeleton are visible, which share the same coloration as his accessories, though this may just be cords holding together the separate pieces of his suit. His jaw hangs open and his head is tilted to the right. He is also presented in a sitting, slouched position as if he were deceased.

Behaviors
When checking CAM 2B, the player will see a poster on the wall. It can switch between three different versions: a normal picture of Ryder, a distorted version (in which he appears to rip off his own head), or a close-up of Golden Ryder's face. While this picture of him is being viewed, a young girl's laugh can be heard.

If the player sees the Golden Ryder poster and then switches back to the Office, Golden Ryder will be waiting for them. His appearance causes different images to flash on the screen for split seconds, along with the words "IT'S ME". Golden Ryder will wait idly for few seconds before killing the night guard, forcibly closing the game. This does happen in the mobile version but the chances of it occurring are much lower than the PC version.

Unlike all of the other animatronics in the game, Golden Ryder does not give any indication of approach or arrival within the Office. He completely disregards the doors, appearing whether they are open or closed. Unlike the other animatronics, the screen will be covered by a static image of Golden Ryder's face upon attack, akin to the images that flash during Slash's hallucinations.

The moment the player sees him, the player must bring up the Monitor before Golden Ryder kills the night guard. Doing so will cause him to disappear, thus preventing death and a game shutdown.

Alternatively, the player can avoid him entirely by simply not looking at the West Hall Corner camera poster (CAM 2B), which will prevent him from being summoned in the first place. However, this may prove difficult, as players may be templeted to watch this particular corner in case Ryder is making a move toward the Office.

Theories

 * There is a common theory that Slash may be hallucinating Golden Ryder, as Golden Ryder only appears if the player glances at said poster and returns to normal view. This is also emphasized by Golden Ryder not being a part of the Custom Night's A.I. Customization. Also, Golden Ryder seems to have handprints on his face similar to the ones on Ryder's face, further supporting the idea that it may be a hallucination of Freddy. Furthermore, when he appears in The Office, there is no reflection of him in the monitor screens, like there normally are when any animatronic is in The Office. Plus, when the player is jumpscared by Golden Ryder, the game does not show a game over screen; it simply closes.
 * However, this can be disproved by the fact that Golden Ryder's jumpscare audio is heard on the phone calls of Nights 4 and 5, along with a robotic voice, which plays when Golden Ryder is in The Office. Additionally, Golden Ryder probably doesn't appear on the A.I. Customization because he appears dependent on the player's actions, similar to Chase from the second game.
 * Golden Ryder has no reflection on the monitor screens, which could mean he is a ghost or an apparition of Ryder, rather than a hallucination. Golden Ryder also vanishes only to reappear time and time again in a night rarely. He is also capable of appearing on a poster and making hallucinations increase, which a ghost has the ability to do. Golden Ryder also has dark blue smoke around his upper body, and a foggy appearance when he appeared in the second game.
 * Some speculate that Golden Ryder killed Phone Guy, since his jumpscare audio is heard in the phone calls of Nights 4 and 5.
 * There is a theory that states Golden Ryder is actually Spring Ryder from the first restaurant, Brownie's Family Diner, which is mentioned in the second game, and possibly in the fourth game.
 * It is possible that the endoskeleton in the Backstage might be Golden Ryder's though it may also just be another spare endoskeleton.
 * It is possible that Golden Ryder is the suit used during The Missing Children Incident. This would explain his lifeless behavior, due to him being a costume with no person or endoskeleton in it.
 * However, the likelihood of it being used during The Missing Children Incident is unlikely, as Phone Guy, during Night 1, mentions that the animatronic suits also have crossbeams and wires. This would've likely killed anyone wearing the suit, regardless of the lack of an endoskeleton.
 * It is also possible that the Kitchen is Golden Ryder's starting location since the player can never see into this room. However, Cheat Mode in the mobile version may debunk this as Golden Ryder isn't shown in the Kitchen, but this may be just to compliment his mysterious nature. However, it is unknown why the company would put an empty suit or animatronic in the Kitchen, but if Golden Ryder is indeed in the Kitchen this is most likely in line with the theory that Golden Ryder is a hallucination.
 * Golden Ryder has also been speculated to be Phantom Ryder.

Trivia
 W.I.P