Christmas Zombie Defence

Its Christmas time and everyone should be having fun with their friends and family.  But the Zombies are on the march and they are out to ruin Christmas in the Christmas Zombie Defence game.  You aren"t going to let the zombies ruin things are you?  Good!  Now grab your gun and kill those zombies before they enter your party and ruin the night for everyone around.  Santa needs your help to defend against the zombie attack so don"t let him down.  Merry Christmas!