Place this clip just before the reveal in your edit, then follow it with the Classic Error Sound Effect for a failed attempt, or swap to the Dramatic Dun Dun Dun Sound Effect when the consequence needs a bigger payoff at the end.
關於此聲音
A calm computer-like voice repeats the word warning over a low alarm tone for about six seconds, kept at a modest volume instead of a blaring siren. The flat, mechanical delivery feels urgent but not painful, creating a tense, mock-serious mood that instantly signals something has gone wrong, like an alert from a game spaceship or control room.