Zilla (MA)

Zilla is a species of monster appeared in 怪獣黙示録 (Kaiju Mokushiroku: Monster Apocalypse), a prequel novelization of Godzilla: Planet of the Monsters.

History
Zilla and infants joined the global monster attacks, focusing on France.

First encounter was by an army formed to recover Europe from monsters nearby Rouen, defeated the monsters by volley of Masers and Railguns. Characteristics such as being bipedal and fins caused humanity to misidentify as Godzilla and the world was overjoy to hear the defeat of Godzilla. Revealed to be a different race soon after, Godzilla of France was reclassified and processed as Zilla.

It is not clear how many individuals have appeared as a whole.

Ability
Not being described as more tough as a monster standard, it is possible to defeat by volley of normal weaponry. However, matured individual is fast and agile, and babys are too strong to defeat by bare hands. Reproducing asexually, drastic hunts not miss a single eggs or hatchlings are required for ultimate defeat.

Not only the overwhelming numbers, they display highly evolved group tactics where babys move as decoy to support surprise attacks by adult. As a pack, they are very dangerous, becoming formidable foes even to armored forces in street battles.

Ultimate defeat is very severe because of breeding capability and group tactics, forced humanity to consider the usage of nuclear weapons.

Trivia

 * It is possible that concentration of Zillas' appearances on France is a reference to the origin of Godzilla in 1998 movie where the thermonuclear experiment by France caused the birth of Godzilla.