MetalPiranimon is an Aquatic Digimon and a carrier of the X Antibody whose name and design are derived from "Metal" and the Red-bellied Piranha (Pygocentrus nattereri). A swarm of these dangerous Digimon were discovered within the Net Rivers of a particular region, and though it is said that the number of Digimon that have become Megas is extremely small, there are schools of these Digimon which will bite into any Digimon who passes into their territory, killing it immediately. There are razor-sharp teeth in its "Metal Head" cranium, and because its tenacious jaw functions like a vise, it bites and completely rends every armor. However, because the feature named "Metal Head" is extremely heavy, it keeps its balance with the weight attached to its tail fin. Also, if the red button on its ca