From Frankenstein To The Gargantuas? The Debate Continues

Augustus623
MemberMothra LarvaeFeb-22-2017 7:34 PMBackground: Near the end of World War II, the Nazis seize the heart of the Frankenstein Monster and take it to Japan for safe keeping. Unfortunately, the heart is taken to the city of Hiroshima, which soon after is destroyed by the first use of the Atomic Bomb. Thought destroyed and lost forever, the irradiated heart grows amid the ruins until it becomes a "human" boy. To make a long story short, boy discovered, boy loses hand but grows another, boy escapes and continues to grow to gigantic proportions (20 Meters and 200 Tons according to TohoKingdom.com statistics).
Now I tend to favor the alternate ending of "Frankenstein Conquers The World" where after defeating Baragon, Frankenstein is immediately attacked by a Giant Octopus and eventually dragged into the ocean alive and still struggling with the Giant Octopus.
That being said, I also tend to favor the following theory:
1) Sanda, the Red Gargantua was the result of the severed hand of Frankenstein continuing to rejuvenate and grow.
2) Gaira, the Green Gargantua, was the result of Frankenstein (or his remains) rejuvenating and mutating in the ocean depths after the battle with the Giant Octopus.
Question: Was the Giant Octopus that Gaira battles at the beginning of "War Of The Gargantuas" the same one that Frankenstein battles at the end of "Frankenstein Conquers The World"?
What does everyone else think?
DEATH COMES ON GOLDEN WINGS!
ALL HAIL KING GHIDORAH!