Touch Defense is a very addicting and special game. The concept is that many zombies are going toward to their boss to help it revive. Your duty is to prevent them from getting touch with the boss by drawing the symbols on touchscreen. The zombies will be truly dead after you pop all symbols.
So, its really easy. Are you ready to go?
Tip 1: A symbol must be drawn in one stroke.
Tip 2: Draw the symbol as much as possible the same proportion of the symbols above zombies.