Use the up and down arrows to move, left and right arrows to rotate/ aim, the space bar to shoot. 1 to choose mode 1 and 2 to choose mode 2. The two guns modes are different mode 1 does heavy damage, with a fast shot, and a long reload between each shot. Where as mode 2 has little damage, with a slow shot, and a fast reload time between each shot. The green zombies have a faster walk and less health than the orange zombies. The more zombies you kill the faster and stronger they come.
