In "Defense by Robot" you must control your robot fighting to destroy zombies and monsters to save humanity In order to complete the task, you must successfully remove all the zombie enemies that are coming! Build and upgrade your favorite robot to destroy zombies and monsters. Equip yourself to choose your favorite robot and upgrade your robot for the ultimate rescue mission. Clean up the zombies in each mission and you will receive a reward! Features of "Defense by Robot": - Players are directly controlled robot. - Many missions and challenges. - 15 type of enemies, include zombies, monsters and strong mutant creatures. - Special defense mode. - Many items to craft, unlock and upgrade - There are many robot and each robot will use different special skills