Place it early in a horror edit as the warning before the scare, then follow it with the shocking sound effect for the reveal and the X-Files theme to carry the mystery afterwards.
關於此聲音
This is a brief music box snippet from Five Nights at Freddy's 2, the delicate chiming tune linked to the Puppet character as its box winds down. It feels eerie and uneasy, sweet on the surface but carrying the tension of waiting for something to appear in the dark. That contrast makes it instantly recognisable to players who know the game's quiet, watchful nights.