Use the keyboard A, W, D, S or arrow keys Left, Up, Right, Down, and mouse button - if the game description "Alien Shoot Zombies" is not stated otherwise.
Alien Shoot Zombies
Description: Same as us, Aliens don't like zombies either. Then, what will happen? They want to kill all the zombies! Now it's your time! Help aliens kill as many zombies as you can. There are many levels for you to challenge. Can you complete the mission? Have a try!