The Metal Army War challenge isn't over yet! While the heroes who have protected Earth from robotic aliens are on vacation, the new attack is coming... Our heroes stop their vacation and start defending Earth again! This time, you are defending against advanced enemies with different vehicles. These include attack shuttles, drones, and AI assistants. Metal Army War, war game, battle, adventure, 2 player, 2 player games, combat, strategy, defense, alien invasion, robotic enemies, drones, AI assistants