Your mission in this free TD game is the same as in any other tower defense game, you must build defenses near the roads to kill the enemies as they pass. The enemy units will approach from the top of the screen, marching along the roads towards the bottom. Use YOUR MOUSE to place the defenses on the battle field, click your defenses to upgrade them to make them powerful for the rest of the level. Your cash balance is carried over to the next level. For every mile advanced, you will get 5 extra lives a $750 bonus and 3 upgrade points. Good luck!