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. And you get the order. What would you perform? Alien Invasion is a shooting game on www.flash-game.net in which your mission is to shoot as many UFOs as possible in order to prevent them from landing on Earth. Use your mouse to move the tank and shoot. Try to hit more than one UFOs with the same shot. Try to hit the fastest flying UFOs first. You lose one life every time a UFO successfully lands on Earth. You get an extra life each time you destroy 50 UFOs. Good luck!