Megalovania is best known as the battle theme for Sans in Undertale, the independent role-playing game released in 2015 and created by Toby Fox. Its fast, memorable melody made it one of the most recognisable tracks from the game, and it quickly spread through remixes, covers and meme edits on YouTube and TikTok. Short instant versions like this one strip the track down to its most dramatic hook, which is why creators still use it to turn everyday distractions and confrontations into exaggerated boss fights.