This sound is associated with Undertale, the indie role-playing game released in 2015 and widely shared through fan videos, streams, and meme edits. Even very short Undertale audio clips stay recognizable because of the game's distinctive retro sound design and huge online fandom. Creators still use these sounds in gaming posts, pixel-art edits, and nostalgic jokes, especially when they want a moment to feel playful, weird, or instantly game-coded without needing a longer music cue.