Put this clip at the start of the reveal, right as the newcomer enters, then follow it with Anime Wow and Vine Boom Sound Effect to underline the moment before the next scene begins.
O tym dźwięku
This sub-second Japanese voice clip has one speaker cutting in fast with 'who is there?', talking over the moment instead of waiting for a pause. The blunt, slightly raised delivery feels impatient and suspicious, turning a sudden arrival into a joke in less than a second. It works as a sharp reaction beat that signals surprise before the scene moves on.