Bratty and Catty are characters from Undertale, the 2015 indie RPG by Toby Fox. They are best known as the talkative shopkeepers in Hotland, and their names are instantly recognizable to fans even in very short audio clips. Sounds tied to these characters circulate in Undertale meme edits, fan videos and reaction posts because they make a scene feel specific to the game right away. Their enduring use comes from Undertale's strong online fandom and the popularity of short, character-based game audio in edits.