- Extraterrestrial Invasion - ––––––––––––––––––––––––– Welcome to Extraterrestrial Invasion. Click on the mouse to shoot. Survive 5 minutes to win. You can change gun pressing [Space] key. Sniper cost 100$. Bazooka cost 190$. Alien gives 1$. Running alien gives 2$. Flying saucer gives 5$. Enjoy!
