|A boss in|| SSB|
|Console of origin||Nintendo 64|
|Article on Super Mario Wiki||Metal Mario|
Metal Mario is an metalic version of Mario that has appeared in Super Mario 64, two Mario Party games, a golf game, a tennis game, Dr. Mario 64 and Mario Kart 7, in addition to all three Super Smash Bros. games, mostly as a mini-boss.
 In Super Smash Bros.
 As a mini-boss
Metal Mario appears in the 1P Game mode of this game as more or less a boss opponent to be battled one-on-one. In this battle that takes place in Meta Crystal, he is a very different fighter than the normal Mario; he barely flinches to ordinary attacks (even throws barely move him at low percentages), and takes an absurd amount of damage to KO (often over 300%), but succeeding in getting him off the stage almost guarantees victory, as his supremely fast falling speed and terrible recovery make it nearly impossible for him to survive. He rarely uses his fireball, oddly enough, considering how often a CPU Mario uses it. Metal Mario never sprints and rarely jumps; he simply walks from place to place at a steady pace. On lower difficulties he mainly walks around the stage, seldom attacking, but he can be hard to beat on higher difficulties. When being controlled using codes such as debug menu, Metal Mario is ironically considered by many people as being worse than normal Mario; due to his worse down aerial and up aerial (both due to an incredibly bad short hop) and high vulnerability to chain grabs.
 As a mini-boss
Metal Mario more or less reprises his role as a special opponent in a single player mode, in this case as an opponent in the level of the Adventure Mode taking place on the Battlefield stage, following the battle with fifteen Fighting Wire Frames. Unlike the last time, Metal Mario is not considered by the game to be a different character; he is actually a Mario that is permanently under the effect of the newly introduced Metal Box item, except he falls much faster. As usual this severely hampers his recovery, but the metal does not increase his weight as much as it used to. If the player has unlocked Luigi, Metal Mario teams up with Metal Luigi for that same battle, making it more difficult. Beating both characters will award the player with the Metal Bros. KO.
In addition to his appearance in the Adventure Mode, Metal Mario can appear as an enemy in the penultimate fight of the Classic Mode, in the Metal Battle. Metal Luigi also can appear in this fight.
 As a trophy
Metal Mario also appears as a trophy which can be acquired randomly through the 1-P mode or the Trophy lottery:
- Metal Mario
- Mario was in for a surprise the first time he hit a Metal Box in Super Mario 64. The metal cap that popped out transformed Mario into living metal, giving him great stamina, a heavy tread, and the ability to walk underwater. In Super Smash Bros., Metal Mario showed up as an incredibly stubborn midlevel boss.
- Super Mario 64
- Super Mario 64
Despite his role as a boss in Super Smash Bros. and Melee, he, alongside Race to the Finish, didn't return in Brawl. In Level 8 of Classic Mode the player will fight one of several combinations of Mario characters with random modifiers, but while "Metal Mario" is indeed one of the random possibilities he is treated as a regular matchup. However, Mario can still become Metal Mario by using a Metal Box or battling in Metal Brawl.
- If one looks closely at the reflection on Metal Mario's trophy in Melee, the stage of Yoshi's Island can be seen. This is easiest to spot on his hat, nose or bottom.
- If Metal Mario is selected by the use of a debug menu in SSB, he will take the same knockback as the other characters.
- In Super Smash Bros., Metal Mario's series symbol is a bit different from the Mario series, making it more metallic.
- In SSB, when the Announcer introduces Metal Mario, his voice gains a slight change and becomes metallic. Although it may just be to place emphasis on M.M.'s metal composition, the Announcer's voice sounds noticeably deeper and he does not change like that to any other character in Classic Mode.
Enemies in Adventure Mode (SSBM)
|Mushroom Kingdom||Goomba · Koopa Paratroopa · Koopa Troopa · Yoshi Team · Mario · Peach · Luigi|
|Kongo Jungle||Tiny Donkey Kongs · Giant DK|
|Underground Maze||Octorok · ReDead · Like Like · Links · Zelda/Sheik|
|Green Greens||Kirby · Kirby Team · Giant Kirby|
|Corneria||Fox · Falco|
|Pokémon Stadium||Pikachu · Jigglypuff · Pichu|
|F-Zero Grand Prix||Captain Falcon|
|Icicle Mountain||Topi · Polar Bear · Ice Climbers|
|Battlefield||Fighting Wire Frames · Metal Mario · Metal Luigi|
|Final Destination||Giant Bowser · Giga Bowser|
|SSB||Giant Donkey Kong · Metal Mario|
|Melee||Dark Link · Giant Bowser · Giant Donkey Kong · Giant Kirby · Metal Bros.|
|Brawl||Dark Link · Dark Samus · False characters · Giant Bowser · Giant Donkey Kong · Giant Charizard|