defend your base from waves of zombies by building towers and defences click on a blue tower slot to build a basic tower, put in the 3 letter code for the tower you want to place (provided in the bottom bar) then click on this tower to select its upgrades advanced towers can be built on a red slot and cannot be upgraded mini towers can be placed anywhere on the top left, $=money heart=lives arrows=wave number diamond symbol=gems money is earned by killing zombies and by the factory gems are earned by defeating bosses every 6 waves the game is won when the last boss is defeated you lose if a boss gets through or too many zombies do. full screen is very recommended
pl make suggestions for power ups or any ideas in the comments
