In the not-too-distant future, the Earth has unified and is governed by one worldwide government. In order to protect the planet from the threat of alien invasion, the Earth's Armed Forces creates the "Heavy Dolls", a troop made up of the toughest, strongest, and bravest cyborgs in the military. Every soldier that has ever been a member of the "Heavy Dolls" dreams of earning the title of "Heavy Nova," which is reserved for the best and deadliest soldier in the universe. It's with high hopes and confidence that you lead your cyborg into the training program to become the HEAVY NOVA. All that stands in your way is a roster of foes that will do whatever it takes in brutal hand-to-hand combat to make sure that you fail.