Megalovania was written by Toby Fox and is best known for its appearance in Undertale, released in 2015. In the game, the track accompanies the battle with Sans, which helped make it one of the most recognizable pieces in modern indie game music. Its energetic melody spread through fan arrangements, gameplay videos, memes, and streaming culture. This longer edit suits moments that need the theme to continue beyond a brief musical sting, especially extended gameplay sequences and escalating comedic edits.