alien invasion

A dying alien race is trying to land on Earth in search of help. However the President has ordered the army to destroy them all.

Shoot the UFO's before they can land and try hitting the more than one UFO with the same shot. Also try to hit the fastest flying UFO first. You lose a life everytime a UFO successfully lands on Earth and you gain an extra life each time you destroy 50 UFO's.

CONTROLS
Use the mouse to move the tank and click to shoot.