Space Amoeba(1970)

About the film

When a space probe crash-lands on a far-flung Pacific atoll, the craft's alien stowaways decide to take over their new world one creature at a time. Soon, the parasitic life forms latch onto three indigenous critters -- a squid, a crab and a snapping turtle -- and transform them into colossal mutant monsters.

Cast: Akira Kubo, Atsuko Takahashi, Yukiko Kobayashi

Production: TOHO, Toho Eizo Bijutsu, Tokyo Laboratory