This is not tower defense... it is Bat Defense... and you are the Bat! There are three towers behind the castle walls, and it is your job to cause as much damage to them as possible! You have 3 explosive vials at your disposal and you need to do as much damage as possible!
The game is simple. Touch anywhere on the left side of the screen to make your bat move left, touch anywhere on the right side of the screen to make your bat move right. Touch any of the three towers to throw a vial at it. But beware... the castle arrows are flying... if your vial hits an arrow it will explode and GAME OVER!
Now start bombing the castle with your batty explosives in... Bat Defense!