Metal Mario (often shortened to M. Mario) is the metal variant of Mario. He looks identical to the regular Mario but in metal he's also a lot stronger and heavier. The only difference between the two is that Metal Mario's voice has been pitched up in a metallic way. Also the back of his hair is very sharp. He normally is Mario just with the Metal Cap but on some cases he is a seperate character. The seperate character has a mouth for swearing and does it a lot.