Godzilla Earth, otherwise simply known as Godzilla, is the titular central antagonist of the GODZILLA anime trilogy. He serves as the overarching antagonist of Godzilla: Planet of the Monsters, the central antagonist of Godzilla: City at the Edge of Battle and the anti-villainous deuteragonist of Godzilla: The Planet Eater. He is a giant plant-based monster who evolved to become the most powerful lifeform on the planet.
Godzilla Earth superficially resembles the MonsterVerse Godzilla, except that his head is more rounded and his neck is thinner. His skin is dark bluish green in color, with a tree bark texture covering the rest of his body. His chest is muscular, and resembles Kongorikikshi statues, which serves to establish himself as the apex lifeform of the planet, and a god-like figure. He also has a spiky chin which resembles a beard, while his eyes seem bluish in color. He also has a sharp tip on his tail which resembles a thorn. While he seems like a larger version of Fillius, he is has a hunch in his back as well.
Godzilla first appeared in 2030 when he started his reign of terror by killing a Kamoebas, whose carcass was found on the shores of Odo island. A scientist named Kyohei Yamane theorizes that a giant unidentified lifeform killed the Kamoebas and gives him the name "Gojira", otherwise known as "Godzilla". Godzilla begins destroying multiple ships and killing multiple other monsters. He eventually comes ashore in Los Angeles along with Anguirus, Baragon, and Varan, with the other three being killed by him. He then destroyed what was left of Los Angeles and destroys San Francisco.
A year later, Godzilla reappeared in the west coast of the United States and attacks the Colorado Springs, causing the military to make a large scale nuclear attack against him (consisting of 150 nuclear warheads), which failed to harm the monster, who goes back into sea in the Gulf of Mexico. Godzilla appeared in Europe in 2034 and destroyed multiple countries (including Paris), which led humanity to abandoning Europe. Godzilla would later fight a larval creature named Battra, who appeared to save up energy to destroy a 30 kilometer asteroid called Gorath. The two fought twice with Godzilla eventually gaining the upper hand and killing Battra, although sustaining some injuries.
Godzilla would then appear in Antarctica in 2042 and destroys Gorath with a red spiral ray. Godzilla becomes more active and begins attacking the new United Earth more directly (possibly because he knows of the Exif and the Bilusaludo's true natures), even fighting Gigan, a cyborg kaiju found in Siberia who was maimed by the Bilusaludo using Nanometal. The Bilusaludo was also planning on building an anti-Godzilla weapon called MechaGodzilla to eliminate Godzilla, but the monster king found out and destroyed his robotic doppelgänger before it could be activated, leading to humanity deciding to leave Earth to Godzilla and the monsters.
Godzilla eventually attacks Rio de Janiro and seemingly kills Haruo Sakaki's parents, causing the young man to develop a huge hatred over the Avatar of Destruction. After Godzilla drives humanity away from Earth, he begins to face a new enemy named Mothra, who appeared to protect the remnants of humanity. The two would fight throughout 2048 until he defeats her, but spares her only egg. Godzilla begins terraforming the Earth to his liking and creates a new environment of bizarre plant life and new monsters risen from this, including a subspecies called Servum. A monster that resembles Godzilla named Fillius would also come to existence.
Godzilla: Planet of the Monsters
20,000 years later, humanity would return to Earth and Haruo leads a group of soldiers consisting of himself, his childhood friends Yuko Tani and Elliott Leland, his closest Exif ally Metphies professor Martin Lazzari, soldiers Adam Bindewald and Marco Ghione, and Bilusaludian soldiers Mulu-elu Galu-gu and Rilu-elu Belu-be to defeat Godzilla and take back Earth. Leland sacrifices himself to confirm the existence of Godzilla's invisible asymmetric permeable shield, and where the shield is generated. They manage to defeat Fillius, causing Godzilla to rise up and attack the group with his new abilities: the Super Oscillatory Wave and the Plasma Cutter.
Godzilla: City at the Edge of Battle
After the battle, Godzilla went back to hibernation until he was awakened by the activation of Mechagodzilla city which he causes him to head straight for the city. Godzilla tried to attack the city with his atomic breath, but it was deflected by the Mecha's thermal energy buffer layer. He is soon lured a trap point by Haruo, Yuko, and Belu-be, who are in the Vultures. Despite the fortifications not being complete, Galu-gu sets off the trap anyway, which causes him to fall into the city. Godzilla Earth eventually makes his way to the capture point as the city's structures begin shooting railguns. Once he reached the capture point, his feet get frozen by liquid nanometal, which traps him and allows the humans to gain the upper hand.
The crew inside Mechagodzilla city, fired the EMP harpoons at Godzilla Earth's back and overloaded him with energy. However, Godzilla Earth realizes this is going to kill him, so he fused the energy with his own body temperature to turn it into pure heat which reached over 1,000 degrees Celsius. After Haruo killed Galu-gu and destroyed the control room as well as stopping the Nanometal from spreading across the Earth, Godzilla absorbed the heat from the area which gave him enough power to destroy Mechagodzilla city once and for all before letting a loud roar of victory. He eventually goes back to hibernation.
Godzilla: The Planet Eater
Godzilla soon woke up once more when Ghidorah was summoned by Metphies to destroy Earth. The two fight, but Ghidorah restrains Godzilla and begins draining his energy. Godzilla remains helpless towards Ghidorah until Haruo kills Metphies, causing him to lose his connection to Ghidorah, causing the golden demise to become bound by this universe's physical laws. Godzilla then destroys two of Ghidorah's heads before finishing the last one with his atomic breath, before destroying the black holes in the sky. He goes back to hibernation until Haruo begins flying his Vulture straight at him, wanting Godzilla to rid humanity of the curses of the past to prevent Ghidorah and MechaGodzilla from coming back to destroy Earth. Godzilla obliges and shoots the Vulture down, killing him and Yuko, thus ending humanity's resistance against him. What became of Godzilla is unknown, but it is possible that he was able to coexist with humanity, who no longer hate him as much as they did before.