Place it at the peak of a closet scene, then follow with FNAF 2 Jumpscare Scream for the next beat, or end a FNAF montage with William Afton I Always Come Back to close the sequence on a villain line.
About this sound
This is the split-second Foxy closet jumpscare sting from Five Nights at Freddy's 4, a sharp, abrupt burst tied to Nightmare Foxy lunging from the closet. It feels startling and tense, like a calm scene suddenly breaking, and it works because the shock arrives with no warning. The clip comes from the 2015 game, where checking the closet could trigger Foxy's sudden appearance.