It has happened again, we are in a zombie apocalypse where most of these people have already been affected. You have to protect this house that within few who still remain humans are. Use the barrel to stop the onslaught of Zombies that are directed towards the house. As you get to Kill zombies, in addition to accumulating points, you go from level which will mean an increase in difficulty. As you progress through the levels it will be harder to kill these zombies. The sooner you did one shot now will need two and three to kill these evil creatures. Do not let them get to the door and keep alive the few remaining survivors of this attack.
Enjoy the game Zombies, it's free, it's one of our Zombies plants games we've selected.