The only animatronics who enter the Kitchen are Freddy Fazbear and Chica, as Bonnie always approaches from the West Hall and Foxy's fixed movement pattern does not include passing through the kitchen. Thus, the player does not have to worry about Bonnie or Foxy entering this location.
Though Freddy is only able to enter the Kitchen from Night 3 onward, Chica often goes through this area when approaching the player on any night. Freddy is only present in the kitchen if his jingle can be heard when the player is accessing the kitchen's camera feed. Chica's presence in the Kitchen can be determined by the clattering and banging of pots and pans, which can be heard regardless of whether the camera is on the Kitchen or not. Freddy and Chica can both be present in the Kitchen at once and make their respective signal noises, somewhat unlike the other camera feeds where only one animatronic can be seen present at a time.
The Kitchen returns in Five Nights at Freddy's 3 as part of the post-night minigames in Freddy Fazbear's Pizza. Like in the first game, there is no evidence of its appearance. Oddly, no door or hallway leading into it is present where it should be, not even one that is sealed off from the rest of the building.
In Five Nights at Freddy's 4, it is speculated that there is a kitchen in the house where the protagonist lives judging by the banging of pots and pans that can be heard, similar to the first game. More evidence is shown by the entire map of the house when the player activates the "House Map" option in the Extras.
The kitchen once again appears in "Five Nights at Freddy's VR: Help Wanted" as one of the 11 different areas visible under camera perspective. Its purpose in gameplay is almost entirely reminiscent to the kitchen present in the original "Five Nights at Freddy's", being, once again, an invisible room on the monitor. The monitor view is labeled as a disabled camera that can only pick up audio, reminiscent of what the player sees in the former game. As such, The only sign of Freddy or Chica's presence in the room is the noise they emit within it, that being the clanging of kitchen tools for Chica, and the Toreador March theme Freddy makes.
The Kitchen is the only area where the camera is disabled for the entirety of the game, thus no description of its physical appearance can be provided. The only way to know for certain of an animatronic's presence within the Kitchen is through the audio (or via the Android version's Cheat Mode) - the clanging of various kitchen utensils and/or Freddy's jingle, though the latter is somewhat unreliable as the jingle does not always play when Freddy is in the Kitchen.
The camera itself displays the lone text -CAMERA DISABLED- followed by AUDIO ONLY directly beneath it. The camera features exclusively a black background with lots of static covering it up.
In Ultimate Custom Night, the Kitchen is once again completely unseen, with the only difference being that there is no "Camera Disabled" text, and the "Audio Only" text has been moved to the top left corner of the screen.
In Five Nights at Freddy's VR: Help Wanted, the kitchen once again lacks any form of appearance, and, similar to the first game, displays "-Camera Disabled- Audio Only". Similar to the aforementioned game, this is compensated by the noises created by the animatronics that explore the room.