Zombies (the brain dead fools) attack your player who is walking on the road.
Your player shoots automatically at them. Use RIGHT/LEFT arrow keys to make your player to turn in right/left directions. If your player drifts to the edge of the road use the above keys to make him hit the road again. Press and drag the grenades with the mouse to hit the zombies. If the zombies hit your player his health gets reduced by 1%. If his health becomes zero the game ends. You win the game if your player reaches his house, before his health becomes zero.