BioHazard was a Heavyweight robot built by Carlo Bertocchini that competed in ComBots Cup I. It was a Silver, six-wheeled, low slung robot with skirts that provided an extremely low ground clearance, it was armed with a lifting arm. BioHazard is notable for being the most successful BattleBots competitor of all time and having one of the best Heavyweight win to loss records of alll robots across all competitions, along with Sewer Snake, Original Sin, and Robot Wars competitor Razer. Despite all this pedigree, by 2005 BioHazard was extremely outdated, and its armor which was the best that could be gotten in the late 90's and early 2000's was thin by comparison. As a result Biohazard did not do nearly as well in Robogames as it did in BattleBots, losing both of its matches by destructive knockout to Brutality, and Megabyte. The destruction that resulted from these two fights forced BioHazard into retirement.