- Game control:
Alien Guard is a shooting game, which is available on the free online flash game website www.t45ol.com.In this game you are a guy with a gun. You’re standing on top of some structure and shoot the aliens that approach. The aliens can walk on different levels. When they get to one of the air streams you have on both sides, they fly upwards. You must kill them all before they reach and hurt you. You can jump and duck with the up and down arrow keys, but you can’t walk. Shoot with the mouse.