Poe's Trailer Trash: Yog, Monster From Space (1971)

An alien composed of pure energy invades a space probe returning from Jupiter, causing it to crash in the South Pacfic. With nothing better to do, this alien, named Yog, decides to posses the bodies of three sea creatures: a squid, a crab and a turtle. It then sends the now giant creatures on individual rampages on a south seas island. Eventually the monsters battle each other after humans find a way to break Yog's spell over them by using bat sonar. No, I'm not making this up.

Another wacky giant monster movie from the Godzilla school, this was one of the last films to be directed by Ishiro Honda, the director of the orginal Gojira. One can see why he stopped making these things after viewing Yog. Originally titled Space Amoeba, the film feature three of Toho's least intersting Kaijus and a plot that makes little sense. With that being said, the film is still colorful fun on a juvenile level and worth catching for undemanding fans of the genre. Just don't expect another Gojira.