Spider Dance comes from Undertale, the indie role-playing game released in 2015 and created by Toby Fox. It is the battle theme for Muffet, a spider monster who runs a bake sale and challenges the player to a fight. The track became widely shared through Undertale gameplay videos, fan animations and remixes, where its catchy violin hook made it easy to recognise even for people who had never played the game. Years later it remains popular in edits and memes because it instantly signals a playful but tense showdown.