Easter Eggs are references or nods to other horror games, YouTubers, and TV shows found throughout the game.
JELlegendz A framed photo of him can be found in the randomly generated LP Room, among with several others.
ScaryPlayerNorway A framed photo of him can be found in the randomly generated LP Room.
Band-aid Boy A framed photo of him can be found in the randomly generated LP Room.
Forksnapper A framed photo of her YouTube avatar can be found in the randomly generated LP Room.
Specimen 2 is a nod to the Lub-Glub monsters from the cartoon Adventure Time
Specimen 3 is a nod to the Resident Evil series.
Specimen 4 is a nod to most RPG maker/Asian horror games, more specifically Corpse Party, or Misao, due to her disposition and appearance matching Japanese folklore.
Specimen 5 and the sounds, textures, and ambient music associated with it are a nod to the Silent Hill series.
Specimen 6 and the room you encounter it in seem to be modeled after the Kakariko Well from Legend of Zelda: Ocarina of Time. Specimen 6 itself is a reference to the Happy Mask Salesman from Legend of Zelda: Majora's Mask, or, more specifically, the famous Ben Drowned creepypasta created after the game.
Specimen 8's design was inspired by The Beast from the cartoon Over the Garden Wall
Specimen 12 is a nod to the classic horror game Clock Tower
- The Possessed One's appearance was inspired by the serial killer in the Adult Swim short, Too Many Cooks
Specimen 13's behavior was inspired by Kaernk From Amnesia: The Dark Descent
Monster 5 is a nod to Bovine spongiform encephalopathy (commonly known as mad cow disease).
Monster 6's appearence, chase theme, death screen and name refers to Rebecca Black and her infamous song "Friday".
Unknown Specimen 1 is a nod to the pixelated horror game Imscared.
Unknown Specimen 2 is a nod to the fangames of the popular horror game Five Nights at Freddy's.
Unknown Specimen 4 is a nod to various Eskimo legends and Folktalks (such as the Fox Woman).
Unknown Specimen 5 is a nod to the short horror game P.T.
The secret CAT-DOS entry "Mattress Man" Is a reference to A Gmod horror map called "Shadows Chapter 3" made by the developer. In which case, makes an appearance in the Map. In which, is a fast zombie with a box welded to it. Also, 'The dolphin" is another reference to the same map.
Events and Rooms
One of the randomly-occurring notes mentions that its writer thinks that picking up too many notes will summon a "tall man character." This is either a reference to the Slender Man, or a reference to Trilby's Notes, the third in a series of freeware horror games, and the first one containing a hostile character known as the Tall Man.
During the Final Boss Battle of Specimen 9, The "Fireball" attack could be a nod To Ganon's infamous attack, "Dead Man's Volley" Attack from The Legend Of Zelda Series.
A Resident Evil style door animation plays when exiting an "elevator" room.
Rarely, you can enter the room with chair and table with fan and phone on it, when you use a phone you will hear "Hello, hello hello" which is a reference to the Five Nights at Freddy's series.
There is a creepy drawing of a character named "Kyubey" from "Puella Magi Madoka Magica" located in one classroom from Room 165.
Alternate Select Screens
When launching the game, there is a small chance that the title will display as "Spooky's Sandcastle of LAND SHARKS", "Spooker's Homecooked BBQ" or a set of distorted teeth.