w=forwards in facing direction mouse=facing in a direction 1=pistol mode (aka starting mode) 2=machine gun mode 3=shotgun 4=insta kill gun random times=a wave is coming (it pops onto screen) read furtherer down... k=insta kill all watch out for difficulty changes!
backstory: long ago the myth of zombies was broken! it shattered the world; all from a single zombie in a lab; it spread in a flash of a second. you are the last human on earth fighting zombies till the end. kill as many zombies you can!
