Heavy dog and the little girl are 2 lategame bosses, fought after befriending Zag'ka. They are an old, outdated Military robot, with a new CPU, being telepathically controlled by a little girl.
A girl found a giant Military robot in a Government scrapyard, known as Heavy Dog, who was built by the SpaceForce Corporation sometime during the beginning of the Trans-Galactic War. She was holding a new telepathic controller card, somehow got into the scrapyard, and put it into the CPU component of the robot, reactivating it and allowing her to control it.
Heavy Dog is a large, bulky robot with a machine gun and faded Military and SpaceForce insignias, and the girl wears a dress and has telepathic control over Heavy Dog,
- Story-wise, after being defeated, the girl is taken into Military custody, and Heavy Dog is dismantled.