In this game you will face to so many enemies and zombies. So, just take your gun and shoot! You should be really attentive and just stay alive as long as possible. So, if everything is clear, then kill them all right now. You will cope with it!
When you start the game, you will be holding a gun, clicking your mouse will fire your gun. If you move the mouse to the far right or far left of the screen, you will turn to that side. You can move around in a 360 degrees. The area you are seeing is shown on the radar. Your bullets however, can run out. Press space to reload it will take a few seconds. Your life can run out, if it does the game will be over. The goal is to survive. Around you enemies will appear on the radar you need to move yourself to the enemy and gun him down as soon as possible. Have fun!