The War of the Gargantuas (1966)
A giant, cannibalistic humanoids rampage through Tokyo is halted by his more docile twin, but neither their reunion nor their scientist caretakers can prevent their eventual duel
The Lost World of Sinbad (1963)
Sukezaemon, a pirate, is shipwrecked in a strange corner of the world With his companion, a wizard named Sennin, Sukezaemon becomes entangled in a plot by the evil premier to succeed the dying King Raksha
Frankenstein Conquers the World (1965)
An American scientist and his Japanese colleagues study a mysterious feral boy who is seemingly resistant to radiation, while a subterranean dinosaur ravages the Japanese countryside