Zemus is the mastermind behind Golbez's actions. Wishing to destroy the planet, he manipulates Golbez into carrying out his will in hunting down the Crystals. Fusoya reveals that Zemus is the only Lunarian who refused to go into stasis until the time when Lunarians and Earthlings could live in harmony. Even though Golbez and Fusoya seemingly vanquish him, Zemus comes back to life as Zeromus, the monstrous embodiment of his hatred and evil. Cecil and his friends use a Crystal to reveal the true shape of Zeromus, and manage to slay him.