Unidentified Flying Objects (UFOs)

UFOs are the strongest standard type of alien in Earth Taken 1, 2, and 3.

UFOs sometimes appear briefly, drop alien foot soldiers, and then fly off again.

Occasionaly, the player can view UFOs flying in the background.

The UFO's primary attack is a blue laser it shoots.

The final boss in Earth Taken 1 is a faceoff with a UFO constantly shooting lasers and dropping aliens.