So if you want to Play Scary Night, you must head to extras and go to Fan Characters and try to find scary billy, you must stare at scary billy for 7 seconds. once you stared at him enough, he will make his appearance even more scary meaning you have triggered one step. To do the second step, you must head to collectibles and click on the old photos. you must type in the year code in custom night and play with the guard of Fritterfalle. Once you done the second step, start the custom night and you'll hear a unique night start sound. You flip up the camera and see Scary billy and you started flipping it down for a split second. Once you see The Screen Dark and it says ''Find me'' that means the scary night has begun and must play a game with Scary Billy. he will have 4 attacks.
1. If you see the Message ''Find Me'' Find him on the cameras and stare at him until he's gone.
2. If you see the Message ''Flip Down the Camera'' Flip down your camera and he'll disappear.
3. If you see the Message ''Flip Up the Camera'' Flip up your camera and that's it.
4. If you see the Message ''Zap The Door'' You must zap Scary billy on left or right door.

After Encountering him 14 times, he gives up and gives you a Naughty Punishment, Forcing you To play Demo Sprinkler for the rest of the night. It won't count as progressing through the Scary Night. But after Encountering Scary Billy, you get a pretty cool star in the menu which does says ''Scary Night Completed oooooh very scary'' And clicking on it makes a creepy pitch jingle and a women screaming.

Man, i wish scary billy would exist as being canon to the game