When players reached the final confrontation with the monstrous, grieving doctor, "Megalovania" made its debut. Its name—a portmanteau of "Megalomania" and "Transylvania"—was designed to evoke the feeling of a final, supernatural struggle. The Evolution: Through Time and Space

The version most people know today is pitched up and faster, appearing only in the "Genocide" route. The Judgment: A Hero's Stand

The song was remixed for the massive webcomic Homestuck , specifically for the character Vriska Serket, cementing its status as a "final battle" anthem.

The melody didn't stop there. Like a signature, Toby Fox wove it into his later works, each iteration refining its high-energy chiptune soul: