[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.

[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."

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.

Similar to nearly every monster in the Godzilla series, Megaguirus was at one point exposed to radioactive materials, resulting in a substantial increase in strength, speed and size.