Giant Robo 2 - or simply GR-2 - is the second robot born of the GR Project in the Giant Robo franchise. It differs greatly from the original Giant Robo, having a unique body structure and a limited arsenal (at least, compared to GR-1). GR-2 was created by the terrorist organisation Big Fire to function as a naval combat machine. It is equipped with hydrofoil propellers for underwater travel, though it is also capable of operating on land. In underwater combat, GR-2 is capable of propelling itself towards enemy robots and goring them with the large crescent blade attached to its head. Underwater and on land, it is capable of launching its fists like rockets to smash through anything in their path.