One of those Shōwa era appearances was Godzilla vs. Gigan. The plot of that film had a pair of extraterrestrials take over the body of a deceased teacher and his favorite student. Their goal?

For seasoned Godzilla fans, it's a dead ringer for the red glow of Gigan's visor. Gigan is an alien cyborg kaiju who first appeared in the 1972 classic Godzilla vs. Gigan, in which he was ...

The Nebulans had come to Earth with the intent of taking it over and turning it into one of their colonies, but Godzilla put a stop to it. As for Gigan, it would reappear over the years and even ...