This is the alien monster from the 1956 science fiction film 'It Conquered the World', about a Venusian alien trying to take over the world and guided to Earth by a disenchanted scientist.
Venusian Alien Papercraft [Download]
Predator Papercraft [Related Posts]
Alien Papercraft Overload (Life Cycle)
ALIENS Papercraft - P5000 Power Loader
Unreal Tournament Damarus Papercraft