Mettaur (メットール Mettōru?) is a common virus type in the Mega Man Battle Network series, and the only species to have a constant appearance, while other viruses were replaced or omitted. They wear small hard hats with crosses on them and wield a pick axe, which causes a shock wave when thrust into the ground. In the games, they move up and down the columns they are in, sending shockwaves at the player. While normal Mettaurs stand still while the other Mettaurs present attack, stronger variants hide in their helmets and are impervious to attacks (unless they come out of their helmet or are attacked by an attack that can pierce). In Mega Man Battle Network 3, a family of Mettaurs can be caught and brought to the Virus Breeder, where a special Battle Chip can be obtained from them; upon meeting