Protect the flora against the invading monsters by building your army of plants. Design your own path with defense units. Juggle the exit gates to confuse the incoming monsters.
Protect the castle from invasion of the giants. Build various types of towers on land and air then get ready for the gigantic battle! It takes quite a while to finish loading.
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.