After surviving five nights, it is revealed that The King (a Link: The Faces of Evil meme character) was actually behind everything because he wanted to suck on the player's underwear.
The game’s story concludes with several wild revelations depending on the player’s performance:
After Night 5, the museum is shut down due to a "mysterious disease" that turns people green and causes them to suck on people's underwear. Five Nights at Pingas 3
Beating the secret "Night 666" unlocks a retro minigame where a naked Robotnik encounters Baby Hitler , leading to a final jumpscare. Five Nights at Pingas 3
In a final confrontation, the player controls a "Shoop da Woop" to fire lasers at The King, eventually revealing him to be a Blue Spy in disguise as well. After surviving five nights, it is revealed that
The narrative takes place roughly (the series' primary antagonist, known as Pingas). To commemorate his life and his notorious "underwear stealing business," the Pingas Underwear Museum was opened. You take on the role of a night guard hired to watch the museum from midnight until 8:00 AM, using limited camera power and various traps to survive. The Lore Backstory: Mexican Satan and the Illuminati
Decades later, these zombie entities haunt the museum, attempting to suck on a night guard’s underwear to regain their life force. Major Plot Twists and Endings Five Nights at Pingas 3 In a final
Mexican Satan, revealed to be a Blue Spy in disguise, used the underwear for "Illuminati magic". This cursed Robotnik, Vegeta, and Sanic, turning them into zombies and sending them to jail (and eventually "Pizza Hell").