In year 20xx, an unknown evolving lifeform known as Popipu attacked Earth. Facing total extinction, humankind had united and formed the Earth Defender Corps, and eventually defeated Popipu. However, peace didn't last long. As they looked up into the sky, they know their fight is not yet over... Gear up soldiers, we're going to SPACE!! ================================ 100T Earth Defender S features: - Head to space! Battle under zero G! - Meet the latest space technology, from gravity platforms to space-age units! - Troops will be on duty 24-7! They will keep fighting non-stop, even if you are away! - Board the mothership and give the order to use the anti-monster armaments! Upgrade the ship for more firepower! - Overwatch the battlefield to boost the morale among the troops and increase their combat efficiency! - 4 special units with exceptional powers are always ready for dispatch to turn the tide of the battle! - Extended storyline and more monsters to confront! What will be the fate of the Earth!?