Films: War of the Gargantuas (1966)
Alias: Gaira (Green Gargantua, Bigfoot Gaira, Giant Ogre, Gailah, Gaila) and Sanda (Brown Gargantua, Giant Ogre)
Location: Ocean/Civilized Area/Forest
Height/Weight: That of a large building for the both of them (Sanda is bigger, though).
Affiliation: Evil (Gaira), Good (Sanda)
Summary: It's the classic story of Cain and Abel. One's bad, the other's good. In this case, the circumstances are a bit...stranger.
History: Remember Toho's Frankenstein? Well, as it turns out, his legacy lives on. Some of Frank's flesh regenerated in different areas. One in the sea, and the other in the mountains. The sea part grows into Gaira while the mountain part grows into Sanda. Due to the harsh conditions of the ocean (with a big-ass octopus to boot), Gaira grows bitter and craves for violence and the taste of flesh. In contrast, Sanda is raised by humans, and grows to admire and protect them and nature. When the two giants meet, Sanda attempts to bond with his sibling, but upon seeing his remorseless act of eating people, all bets are off...
Notable Kills: Nothing special.
Final Fate: After duking it out over the sea, some bombs accidentally set off an undersea volcano, which engulfs both giants for good.
Powers/Abilities: Both are incredibly strong and durable for kaiju.
Weakness: Gaira hates bright lights, and both are susceptible to major injuries more frequent than most kaiju.
Scariness Factor: 4-It really is a matter of opposites here. Gaira is savage-looking and eats people without hesitation. Sanda on the other hand is willing to break his own bones if it means protecting just one human. So if you even encounter both, you'll know who to side with.
Trivia: -Gaira's name is a play on the Japanese word for "sea", while Sanda's is one off the Japanese word for "Mountain". Can you see a trend here?
-The story of Cain and Abel is from the bible, and concerns the sons of Adam and Eve. Cain is the evil one, and slays his brother before God punishes him to wandering forever and founding the city of Enoch. He is often considered the first true killer in fiction.