A short thunderclap sound effect from Undertale, used in video edits and memes to add dramatic impact after a sudden reveal, joke, or plot twist.
This is a brief, punchy thunder sound from Undertale, lasting just over a second. It opens with a sharp crack and rolls quickly into a deep, rumbling boom, without any music or voices getting in the way. The effect feels sudden and weighty, like a storm breaking overhead at exactly the wrong moment. In a video, that instant jolt makes a reveal land harder, turns an ordinary line into a dramatic beat, and gives the audience a clear cue that something important or ominous has just happened. It works because it is short, clean, and immediately recognisable as thunder, rather than a long, drawn-out storm recording.
Undertale is a 2015 indie role-playing game by Toby Fox that became widely popular for its characters, music, and unconventional story. Its sound effects, including short impact and weather sounds, are often clipped and reused by fans in edits, memes, and short videos. This thunder clip is valued because it is brief and instantly readable, so creators can drop it into a scene without explaining the reference. It continues to circulate as a handy dramatic punctuation mark, especially in gaming and reaction content where a sudden, heavy sound sells the moment.