Click on the character that you would like to purchase. Next click on where you want to place him. You can't place him anywhere in the red. The normal turret will cost 50 coins each, and the double turret costs 100. After every wave or elimination you will get coins. Now you know everything so get to playing!
This was inspired by massive game that many people like to play called "Toilet Tower Defense". Note: We did use a tutorial for a bit of it.
