Space Amoeba (1970)

An alien aiming for the Earth transforms monsters to attack!

★ 6.4 G 1h 24m Science Fiction Adventure Horror

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.