Godzilla

Godzilla (Gojira in Japan) is a giant, lizard-like kaiju created by radiation, punishment from the gods for man's arrogance. In fact, the very first Gojira film, the monster is a metaphor for nuclear weapons. As the film series expanded, some stories took on less serious undertones portraying Godzilla as a hero while other plots still portrayed Godzilla as a destructive monster; sometimes the lesser of two threats who plays the defender by default but is still a danger to humanity.

Regardless of alignment, Godzilla is the King of The Monsters.

Giant Monster Rumble
Godzilla will be in this, once it finishes.

Goin' Green
Big G defeated Robin Hood in the opening round, but was eliminated by the diminuitive Koopa Troopa in the second, proving that size DOESN'T matter.