This sound is associated with Undertale, the 2015 indie RPG created by Toby Fox. Short combat effects from the game became widely reused in fan edits, animation memes and gameplay videos because they are instantly recognizable to players and easy to sync to visual beats. The slash in particular stays popular for fast hit moments, comedic cuts and retro-styled content. It is often grouped with other game UI and combat sounds that creators use as compact, low-clutter impact effects.