|SPOILER WARNING: This section may contain major plot and/or ending details. Proceed at your own discretion.|
— Ancient Guarani prophecy
Awakened by King Ghidorah in 2019, Camazotz engaged in a dogfight with Monarch G-Team fighter pilots over San Diego. The Titan later returned to his home inside the Hollow Earth under Skull Island, only to reemerge two years later when a storm overtook the island and plunged it into darkness. Camazotz and his minions flew from the Hollow Earth to kill Kong and take over the island, however with the help of Monarch's pilots Kong was able to defeat them and banish Camazotz back to the depths from whence he came.
Camazotz is named after a bat god of darkness and death from Mesoamerican mythology. In the K'iche' language, his name literally translates to "death bat."
Camazotz resembles a giant demonic bat, with rough brown skin, fur on his chest and back, a comparatively small head with jagged horns and sharp teeth, and large shredded wings adorned with sharp, bone-like protrusions. His eyes are red, and one of his horns is broken. Camazotz also possesses a long, spiky tail.
Camazotz is classified by Monarch as a "destroyer," which is reflected by his aggressive and destructive nature. Camazotz is said to have menaced mankind for many millennia, and leads his swarm of hellish bat-like minions in a quest to extinguish the sun and take over the world, plunging it into eternal darkness. He also seeks out atomic-rich Titan blood on which to feed. Within the context of Kingdom Kong, Camazotz attempts to conquer Skull Island once the storm renders the island dark, intending on killing Kong and claiming his status as an alpha Titan.
A cult worshiping Camazotz began among the Zapotec tribe of Oaxaca, Mexico, and the figure was later adopted into the pantheon of the Maya Quiche tribe. Legends of Camazotz were spoken of in Maya literature. Camazotz and bats in general were associated with night, death, and sacrifice, due to bats inhabiting the caves around the sacred cenotes which the Mesoamericans believed were portals to the underworld. The ancient Mayans recorded warnings of Camazotz, who is very much real and has terrorized mankind since the dawn of time. He has been rendered blind from dwelling for millennia in the deepest and darkest caverns of the Hollow Earth.
In 2019, Camazotz was one of many Titans awakened by King Ghidorah's call. He and his swarm of minions attacked San Diego and clashed with Monarch G-Team pilots. He and his minions succeeded in destroying many of the enemy planes, including that of Captain Tam Nassar, placing them into a coma. Captain Audrey Burns, one of the pilots who took part in the battle and a close friend of Tam, was left deeply scarred by this event.
Two years later, a storm that was generated over the Pacific Ocean by Ghidorah began approaching Skull Island, which began experiencing increasingly regular earthquakes. Houston Brooks and Monarch were planning an expedition to the Hollow Earth through a vortex on the island, but the strange events slowed their progress. Brooks was troubled by hieroglyphs found near the cavern leading to the vortex which spoke of the "King of the Deep," who would rise to claim his kingdom once the world was swallowed by darkness. Nevertheless, the drill team detonated dynamite near the cavern entrance and sent a drone to scout ahead. The island was rocked by a high-frequency scream which injured the ears of both the humans and Kong. Brooks realized too late that the "King of the Deep" spoken of in the prophecy was Camazotz, that the earthquakes were the result of him trying to enter through the Hollow Earth, and that the storm was what would render the island dark and allow him to return.
Just as Brooks feared, Camazotz emerged from underground once the storm reached the island and plunged it into darkness. The winged Titan roared at Kong, who beat his chest in response. The two Titans clashed, with Kong throwing a large canister at Camazotz, who emitted a supersonic shriek that caused Kong to hold his ears in pain. Camazotz then used his talons to grab Kong and lift him into the air before dropping him. Kong grabbed Camazotz by his horn and slammed him to the ground, but the death bat wrapped his tail around Kong's arm and lifted him into the air again. Audrey and four other elite Monarch pilots, who had entered the battle, realized that Kong couldn't win this fight alone and opened fire on Camazotz. Camazotz called for his swarm to deal with the pilots, but Kong grabbed him from behind. Camazotz broke free from Kong's grip and took flight high into the air to attack the pilots, but Audrey's plane broke the sound barrier right in front of Camazotz's face, disorienting him and sending him crashing to the ground. Kong took the opportunity to pummel Camazotz with his fists, then dragged him toward the crater from which he emerged. He grabbed Camazotz by the neck and punched him directly in the face, sending him falling into the crater back to the Hollow Earth. The swarm followed its leader, and the dark Titan's bid for supremacy was stopped.
Camazotz emits a supersonic scream that shatters buildings and disorients other Titans in combat. He uses this screech to injure Kong's ears during their battle.
Camazotz's sharp claws allow him to grab and lift other Titans into the air, then drop them from extreme heights.
Camazotz's spike-covered tail is prehensile, and he at one point wraps it around Kong's arm in order to lift him.
The jagged bones jutting from Camazotz's shredded wings are stated to be razor-sharp, though he is not seen using them in combat.
Rendered blind from living in the darkest recesses of the Hollow Earth, Camazotz relies on echolocation to navigate.
Camazotz controls a massive swarm of giant bats that do his evil bidding. He typically has them deal with fighter jets that try to attack him.
Camazotz cannot stand sunlight, and thus cannot be active whenever the sun is visible. Camazotz is disoriented and knocked out of the sky when Audrey's plane creates a sonic boom in front of his face, allowing Kong to easily dispatch him back to the Hollow Earth.
- Camazotz is so far the only main antagonist monster in a piece of MonsterVerse media not to be killed at the end of its appearance.