Conquest of Planet Earth: The Space Alien Game
From Board Game Geek:
A fast paced game of terrifying alien invaders, futile human resistance, and 50’s SciFi Movie Action. Players each take on the role of a different alien Race, all part of invading armada, but each with their own unique abilities and ambitions. Unleash waves of flying saucers to blast human resistance into submission with death rays and terrifying weapons of war as you unleash powerful alien technologies on earth (and other alien races if they get in your way). But beware these pitiful humans are not defenseless. They will fight to the last to defend their planet, aided by countless platoons of army soldiers, powerful human heroes, and their most deadly weapon, the dreaded atomic bomb.