Giant Amoeba (The Angry Red Planet)

Martian Giant Amoeba is the monster that appeared in the 1959 film, The Angry Red Planet.

Design
The giant amoeba has a fin like structure at the top of its head, a singe eye that can also spin and some tentacles on its body.

History
The crew continued exploring Mars in a lake on a boat where a Martian city was visible. The crew then got attacked by a giant sea creature, they escaped to the land but it was revealed that the monster was able to walk on land, too. The Creature kills Jacobs and infects O'Bannion's arm. The creature was then defeated and the survivors went to Earth.

Abilities
The giant amoeba has one eye that can spin, which makes the giant monster much easier to find things it is searching for. It can swim, and also walk on land.

Also See

 * Rat Bat Spider
 * Martian Giant Carnivorous Plant
 * Three-Eyed Martian