A dangerous Mega Digimon discovered en masse in certain regions of Net Rivers. While the number of Digimon able to achieve Mega level is minimal, schools of MetalPiranimon will nibble at Digimon who get too close, killing them in the blink of an eye. Sharp teeth line its Metal Head, and its sturdy jaws function like a vise to bite through any armor. Still, its signature Metal Head is extremely heavy, forcing it to attach a weight to its tailfin to maintain balance. Also, this head can come off easily when the red button is pressed, causing a new Metal Head take its place. MetalPiranimon uses its special move 3D Razor to bite through foes from every direction, and Max-Power Vise to engage the ultimate power of its Metal Head, clamping onto the enemy until it gnaws through it.