Deltarune is an episodic role-playing game by Toby Fox, first released in 2018 as a follow-up to Undertale, and its eerie, musical sound design has made many of its short effects popular outside the game itself. The hypnosis sound comes from that world, where strange music and shifting tones help sell moments of magic, confusion, and control. Once clips began circulating on soundboards and in short video edits, creators started using it on its own, detached from the original scene, as a quick shorthand for being hypnotised, distracted, or put into a trance.
About this sound
The short hypnosis sound from Deltarune, a swirling, dreamlike chime used in memes and edits to show a character falling under a spell or zoning out.
This is a brief, hypnotic sound effect from Deltarune that lasts under two seconds and feels like slipping into a trance. A soft, looping shimmer rises and warps, almost like a music box played underwater, with a gentle, dizzying pulse underneath it. It does not shout for attention; instead it slowly pulls the listener in, making a scene feel strange, sleepy, or suddenly out of control. When it plays over a character, the joke lands instantly: they are no longer thinking for themselves, they are enchanted, distracted, or completely zoned out, and the audience knows something odd is about to happen.