Megalovania was composed by Toby Fox and first appeared in the 2009 EarthBound Halloween Hack before versions were used in Homestuck and later in Undertale in 2015. In Undertale it plays only during the Genocide route fight against Sans, turning a usually joking character into the game's hardest boss. That contrast helped the track spread far beyond the game into remixes, covers and meme edits, where its opening notes alone now signal determination, danger and an unexpectedly serious challenge for viewers everywhere online today.
关于此声音
Megalovania is the intense chiptune boss theme from Undertale, played during the Sans fight and used in memes for epic or determined moments.
This clip captures the driving opening of Megalovania, built on a fast pounding bassline, sharp chiptune synths and a relentless drum pattern that instantly signals a boss fight. The melody loops with urgent, almost frantic energy, shifting between low rhythmic pulses and a soaring lead that feels both playful and menacing. Hearing it tells the viewer a joke character has suddenly become deadly serious, which is why the drop alone creates tension, hype and dark comedy before anything on screen has even happened yet for real.
