Place this clip at the exact cut where the threat enters frame, then follow it with the FNAF Jumpscare Scream for a second hit. For a build-up, put the Danger Alarm Meme Sound just before it so the sequence escalates instead of repeating.
About this sound
This is a 2.8-second jumpscare burst tied to Rush, delivered as a harsh, piercing scream-like hit that lands all at once. It feels panicked and threatening, creating instant alarm as if danger has already closed the distance. The clip comes from Roblox Doors, the horror game where Rush is a hostile entity.