Place this clip at the reveal point in an edit, after an enemy spotted cue sets up the threat and before a jumpscare scream sells the reaction. For a bigger escalation, swap the opening cue for a danger alarm meme sound in longer montages.
About this sound
This is a roughly six-second alert siren tied to the Earthmover, built from a harsh, rising mechanical wail that keeps climbing in intensity. Listening to it feels panicked and overwhelming, like an alarm for something too big to fight. The clip comes from ULTRAKILL, where the Earthmover is a massive boss enemy.