Godzilla vs. Mechagodzilla

Godzilla is awakened by a thunderstorm and reinvigorated by lightning, returning as a potent force against Mechagodzilla. He clashes with the impostor, ultimately teaming with King Caesar to defeat the mechanized threat and retreat to the ocean. His presence symbolizes raw power tempered by a forming alliance with Earth's guardians.

Mechagodzilla is a towering war machine built from space titanium with advanced weaponry. He engages Godzilla and Anguirus in brutal confrontations, injuring both sides before being decapitated by Godzilla in a final showdown. The creature embodies a fusion of alien engineering and terrestrial threat.

Keisuke is an inquisitive archaeologist who uncovers space titanium and pushes the investigation forward. He collaborates with Saeko to translate the prophecy and guides the team through caves and temples while facing danger from intruders. His findings help unlock the key to awakening Caesar.

Saeko translates the ancient prophecy and studies the statue connected to Okinawa's guardian. She acts as the bridge between ancient rites and contemporary investigation, maintaining resolve amid threats. Her efforts are pivotal to identifying Caesar’s resting place and triggering the guardian alliance.

Masahiko, Keisuke's brother, discovers the space titanium during the excavation and brings it to Miyajima for examination. He participates in the mission to safeguard the relics and supports the expedition that leads to Caesar's awakening.

Miyajima is a scientist who examines the space titanium and helps repair Mechagodzilla. He endures captivity by the Simeons and is part of the core team that ultimately witnesses Caesar's awakening. His expertise anchors the scientific response to the alien threat.

Nanbara is an Interpol agent tracking the Simeons. He infiltrates the Simeon base, frees prisoners, and aids in sabotaging the alien operation. His persistence helps coordinate the human and monster forces against the invaders.

Kuronuma commands the Simeons, directing Mechagodzilla's deployment and orchestrating plans to conquer Earth. He remains a calculating antagonist whose defeat comes as the humans and monsters disrupt the base and foil his advance.

Ikuko is Miyajima's daughter who accompanies the team into dangerous caves and guards key artifacts. She witnesses Caesar's awakening and participates in the resolution that unites the guardians with Godzilla's power.

King Caesar is Okinawa's guardian monster, sleeping within the temple until awakened by ritual and song. He joins Godzilla in battle against Mechagodzilla, becoming a crucial ally and protector of the island.

Anguirus fights alongside Godzilla and Endures injuries during the Mechagodzilla showdown. He contributes to the defense through relentless, ferocious assaults and sacrifices in the wider battle.

Nami Kunito is the Azumi Royal Family Princess who holds a key role related to the temple statue. She witnesses the unfolding drama and stands within the royal lineage that anchors the guardian legends.

Yanagawa is an Alien Agent #1 who is connected to the Simeons' infiltration and the larger alien plot. His appearance foreshadows the deeper conspiracy behind Mechagodzilla.

The Simeons are an alien species behind Mechagodzilla, aiming to conquer Earth. Their base is sabotaged by Nanbara and others, culminating in a dramatic explosive finale that decimates their operation.