Get ready to defend the world! Build epic mazes out of powerful and imaginative weapons to defend the world from the invading fieldrunners! Call in airstrikes and set explosive traps to hit the enemies where it hurts. Over 20 new levels span the grassiest fields, driest deserts, sparkling cities, and even an infernal volcano lair! Challenge your mind with the exciting new gameplay styles in Puzzle, Sudden Death, and Time Trial levels. Are you ready to stop the fieldrunners once and for all? Join the defense, now!