FNaF: The Missing Children's TRUE Identities, Uncovered
Arguably even more mysterious than the Crying Child's plushies that he calls his friends, are his actual friends. They're a cascade of references to FNaF 1-3, and it seems like at least half of them have something to hide.
Music used:
Kirby's Return to Dreamland Deluxe OST - Slippery Steps
Katamari Damacy OST - Wanda Wanda
Celeste B-Side OST - Forsaken City (Sever the Skyline Mix)
Castlevania: Symphony of the Night OST - Dance of Pales
Shovel Knight OST - Flowers of Antimony (The Explodatorium)