This sound is associated with Deltarune, the role-playing game created by Toby Fox. The game's first chapter was released in 2018, introducing a soundtrack and sound design that shift quickly between humor, mystery, and unease. Short interface cues from the game later became useful material for fan edits, gameplay videos, and reaction posts. The ominous cancel effect remains recognizable because it transforms a simple reversal or closed option into something that feels unusually serious and threatening.