Megaguirus

Although the species of Meganulon, the origin of Megaguirus, were first depicted in the 1956 movie Rodan,[1] the monster itself did not appear until its debut in 2000.[2] Megaguirus was first mentioned in the movie Godzilla vs. Megaguirus after a swarm of Meganulon absorbed energy from Godzilla and quickly fled to a flooded section of Tokyo.[3] After diving into the flood waters, the entire swarm latched on to an enormous, mutated version of Meganulon. This mutated creature, regarded as the queen, begins to molt once enough energy had been obtained. After leaving behind her exoskeleton, Megaguirus rose above the water's surface and entered the skies of Tokyo.[3]

Immediately after getting above water, Megaguirus began her rampage across Tokyo, destroying numerous buildings by creating supersonic shock waves with her wings. The Japanese military, already deployed to the city to assist in evacuating residents caught in the flood, was helpless to stop Megaguirus. In addition to being practically immune to bullets, her wings emitted a piercing buzz which forced people to stop what they were doing and cover their ears in pain. Before leaving the city, the creature leveled a skyscraper and caused a chain reaction of explosions in several other buildings near where she was born.[3] Several days later, Megaguirus returned to Tokyo in pursuit of Godzilla.[2]

Moments before Megaguirus's second arrival in Tokyo, the G-Graspers, a legion of anti-Godzilla soldiers in the Japan Self Defense Unit, attempts to take down Godzilla "once and for all." However, Megaguirus interrupts this and begins a lengthy duel with Godzilla. Initially, Megaguirus takes Godzilla by surprise, using her speed to avoid Godzilla's attacks, including his atomic breath, as well as knock him over multiple times. Eventually, Megaguirus grabs onto Godzilla's neck with her vice-like claws. Although Godzilla breaks free of the grasp and begins to charge up his atomic breath, Megaguirus jabs Godzilla with her stinger and begins absorbing energy, preventing Godzilla from using his atomic breath while giving more power to Megaguirus.[3]

Megaguirus uses her newly obtained energy to pick Godzilla up and throw him into a building. Once Godzilla recovers, Megaguirus again stabs him with her stinger, but this time, Godzilla grabs Megaguirus's tail and slams it into the ground and follows through by tackling her. Shortly thereafter, Megaguirus uses the absorbed energy to launch an "atomic blast" which causes Godzilla to collapse. Seemingly having defeated Godzilla, Megaguirus goes in for the kill, but just as she makes her move, Godzilla quickly gets up and bites off Megaguirus's stinger. Stunned, Megaguirus floats backwards from Godzilla, only to be set aflame by his atomic breath. To ensure his victory, Godzilla hits Megaguirus again, causing her to explode into a ball of fire before the burning remains fell to the ground and exploded for a final time.[3]

Megaguirus make a brief appearance in the prequel novel for Godzilla: Planet of the Monsters, Godzilla: Monster Apocalypse, in which a swarm of Megaguiruses took over Siberia and clashed with a flock of Rodans while preying on European refugees on the Trans-Siberian Railway.

Meganulon

Meganulon
Godzilla film series character
Meganulon as featured in the 1956 film Rodan
First appearance	Rodan (1956)
Last appearance	Godzilla vs. Megaguirus (2000)
Portrayed by	Haruo Nakajima[4] Katsumi Tezuka[4] Shoichi Hirose[4] Tokio Okawa[4]
Modeled by	Teizō Toshimitsu[5] Akira Yamada Tetsushi Okuyama Takeru Sano Toshiya Suzuki Kimiko Sekine Tomomi Yoshitake Koji Miki Atsuo Inamura Fumi Kajinori
In-universe information
Alias	Meganula[6] Ancient Insect[6] Monster Insect[4] Ancient Dragonfly Nymph Monster Insect}[7][8] Ancient Dragonfly[8]
Species	Prehistoric dragonfly[9]

Megaguirus is the queen of a race of giant prehistoric dragonfly kaiju called Meganulon (メガヌロン, Meganuron), also dubbed Meganula (メガニューラ), which first appeared in Toho's 1956 film Rodan.