It is time to fulfill your duty and protect and the Cupcake Factory at all costs. Buy as many different towers as you can. You need towers to defend both the see and the sky and prevent all of your enemies from reaching your base. When enemies reach the base they will take health from you. When you have no health left you are dead. The towers you use to defend your base can be upgraded and have different elements added to them to strengthen your attacks. There is even a tower that can have a mix of elements and can attack with greater strength.