Your mission in this awesome fast-paced zombie FPS rendered in real-time 3D is to follow an underground route and battle hordes of zombies and giant mutant bosses. Use your right arm gatling gun to kill all enemy units while you explore the underground areas. Joe will move automatically on a predetermined path. Use YOUR MOUSE to aim, and click the LEFT MOUSE BUTTON to shoot. Press the SPACEBAR to bash enemies in melee range with the gatling gun. Use LEFT and RIGHT ARROW KEYS to strafe left and right to dodge enemy projectiles. Good luck!