User blog comment:Downtown Freezy/387/@comment-31940910-20170201164019

387 seems like a texture number.

387 in FNAF1 is +.

387 in FNAF2 is one of Mangle's frames in her jumpscare.

387 in FNAF3 is Phantom Chica one the cameras.

387 in FNAF World is one frame of Withered Freddy's idle.

387 in FNAF SL is the chip from Baby.