Zombie Castle Defense V 1.8

I have decided to create another awesome map. Posted Image This map has 99 waves of hungry zombies and you can play with as many people you want!. You must shoot the zombies that come every wave before they attack your castle!!! You have six lives and gain 2 sand every wave. The sand is used to buy weapons and towers throughout the game. Good luck heroes!!!!!

RULES!!! (Every game map has them)