The Moon Lord has two hands and a head that must be killed before his core becomes available for attack. If using a Celestial Sigil to summon the Moon Lord, it takes 12 seconds for him to spawn, and the screen effect will only appear once. If the Moon Lord is spawned by destroying the Celestial Pillars, it takes 60 seconds for him to spawn, and the screen effect will appear 5 times each time the screen will go darker and all objects and walls will oscillate more violently. During the countdown, the screen will go dim and all objects, tiles, and walls will oscillate back and forth, and then go back to normal, and the sound volume will gradually decrease, eventually becoming completely silent. The status message ' Impending doom approaches.' indicates the Moon Lord's spawning countdown. The Moon Lord can be spawned by destroying the four Celestial Pillars or by using a Celestial Sigil in any world where Golem has been defeated.