Megalovania is the battle theme for Sans in Undertale, the 2015 role-playing game by Toby Fox, and it became one of the most recognisable video game tracks online. Fans remixed, parodied and re-edited it endlessly, with playful versions like this one spreading through meme videos, TikTok edits and soundboards. Its fast tempo and instantly familiar melody make it shorthand for a high-stakes showdown, even when the moment itself is deliberately ridiculous.