Zerosis is a large mechanical turret robot designed by Hark that has trans-formative abilities, accessing higher defensive clearance as needed. It was originally taken out of commission during spirit hunting expeditions around 10 years prior to the main storyline due to being old technology, but returns in New Metro, as the Gongbat began tearing through Hark's more powerful creations. Growing into a massive 30-foot tall humanoid warrior wielding a Scrap Cannon, Zerosis proves to be a challenging, adaptable foe.