Arrange your defenses, match your strategies properly, and destroy the invading MOE army corps to make you arrogant. 【 Synopsis 】 In 2889, Hansen X of the Gramba family invented the new Gramba Tank in order to find the sapphire that had been buried in the sea. Where nadia once hid her gems, there is still danger. Can we save the world this time by preventing the Gramba family from acquiring the gem? We need a hero like you to stop the Gran tanks from grabbing the gems, use the existing battery resources to stop them!!