Use the tower's new and unbelievably cool Super Activated Abilities to lay waste to the endless swarms of balloons. You'll need all the firepower you can get to combat the new Balloon types and new tracks with moving parts and tunnels.
Build towers and defend your base against the waves of blood-thirsty incoming zombies. Earn points to upgrade your existing towers or add more new towers.
Defend the Earth from invading UFOs. Aliens are invading our earth and it is up to you to defend an important nuclear factory. Buy cannons, train new defenders and tell them what to do.
Don't let the creeps complete their path. Do that by building defense towers along the way. Manage and upgrade them to get to higher levels. You have 6 types of towers to choose from once you have enough gold.
