Snowball Z

Stop the zombies throwing snowballs to them and avoid their snowballs. Place the Christmas tree to distract their attention or the snowman if you need help. How many days you can hold this assault?

These zombies are surrounding your house and there is nothing you can do. But you have an idea, it's winter time and if you look on the ground there would be snow. Make snowballs and throw them trying to stop zombies and buy you some time. Place the Christmas tree or the snowman to help. How many days you can hold them on their positions?