During this form, Mario can cross fiery surfaces (i.e. lava) without getting burned, however he sinks underwater and can't jump as high (due to him being heavier) and falls at a faster pace. However, he is immune to all attacks, making him invincible.
Metal Mario appeared as one of the three different 'forms' which he gains from special caps. It can be found in the green "!" blocks and the player must go through the secret area in Hazy Maze Cave and activate the Green Switch to solidify them. This form turns Mario metallic, and it makes Mario heavier to give him the benefit of walking underwater while brushing off the jet streams and not worry about drowning or suffocating in the toxic maze in Hazy Maze Cave, as long as the cap is in effect. When an enemy hits Mario, he will only be stunned but will not take damage. A few drawbacks are that Mario falls faster and he won't be able to swim normally.
Metal Mario appears only as a Wonder Effect and is found exclusively in the Castle Bowser level High-Voltage Gauntlet. Unlike its previous versions, this Metal Mario form allows the player to become impervious to electrical hazards while drawing in nearby coins. Also, players who touch any electrical hazards are able to light up dark areas for better vision. However, the player can’t run fast, and their jump height is decreased, making them heavy.
Metal Mario marked his debut as his own character in Super Smash Bros. as the mid-boss before battling Master Hand. He even has his own stage which is exclusive to Classic mode much like he is. He is susceptible to much more damage than the power-up Mario obtains in Super Mario 64.
After hitting him enough until gaining a percentage of 180 or more, he is able to be knocked down and is also considered the heaviest fighter in the game.
Metal Mario returns in Super Smash Bros. Melee as the same from last time and occasionally with Metal Luigi if Luigi has been unlocked.
Some Metal Boxes can be found in this brawl which allows the player to have the same characteristics the Metal Bros. have. The two are fought on the Battlefield stage.
The Metal Mario transformation happens to Mario when getting a Metal Box item. This is the first time he does not appear as a character in Classic Mode.
Metal Mario appears as a primary spirit in Super Smash Bros. Ultimate. Metal Mario's spirit can be obtained by battling on the Spirit Board. It is also purchasable from the Vault Shop for 6000G.[1] His spirit periodically appears in the Hard 'n' Heavy Metal Spirit Board event.
Trivia[]
Due to Mario's shiny appearance while using a metal box, this powerup is commonly mistaken for Shadow Mario from Super Mario Sunshine.
Metal Mario is similar to Rock Mario (Super Mario Galaxy 2) because both power ups allow Mario to wear an absurdly tough suit (Steel and Rock, respectively).
This power-up is used by Wario who is known as Metal Wario.
If one would look closely on Metal Mario's Melee trophy, one can see a reflection of the Yoshi's Island (Melee) stage, mostly on his nose.
Unlike Metal Mario’s other appearances where he is a metallic silver colour, the version in Super Mario Bros. Wonder is fully coloured, just with a metallic effect on the materials.
Slip Slidin' Away • Lil' Penguin Lost • Big Penguin Race • Frosty Slide for 8 Red Coins • Snowman's Lost His Head • Wall Kicks Will Work (N64)/Mario's Super Wall Kick (DS) • Switch Star of Cool, Cool Mountain (DS)
Big Boo's Haunt
Go on a Ghost Hunt • Ride Big Boo's Merry Go Round • Secret of the Haunted Books • Seek the 8 Red Coins • Big Boo's Balcony • Eye to Eye in the Secret Room • Switch Star of the Basement
Hazy Maze Cave
Swimming Beast in the Cavern • Elevate for 8 Red Coins • Metal-Head Mario Can Move! (N64)/Metal-Head Wario Can Move (DS) • Navigating the Toxic Maze • A-Maze-Ing Emergency Exit • Watch for Rolling Rocks • Underground Switch Star
In the Talons of the Big Bird • Shining Atop the Pyramid • Inside the Ancient Pyramid • Stand Tall On the Four Pillars • Free Flying For 8 Red Coins (5th Star, N64) (7th Star, DS) • Tox Box Switch Star (DS) • Pyramid Puzzle
Snowman's Big Head • Chill with the Bully • In the Deep Freeze (N64) • Yoshi's Ice Sculpture (DS) • Whirl from the Freezing Pond • Shell Shreddin' for Red Coins (N64) • Snowman's Silver Star (DS) • Into the Igloo • Red Coins in the House (DS)
Wet-Dry World
Shocking Arrow Lifts! • Top o' the Town • Secrets in the Shallows and Sky (N64)/5 Secrets in the Shallows and Sky (DS) • Express Elevator--Hurry Up! • Go to Town for Red Coins (N64)/Go to Town for the Red Coins (DS) • Quick Race Through Downtown! • Soaked Silver Stars (DS)
Tall, Tall Mountain
Scale the Mountain • Mystery of the Monkey Cage • Scary 'Shrooms, Red Coins • Mysterious Mountainside • Breathtaking View from Bridge (Star 5, N64)/Breathtaking View from the Bridge (Star 7, DS) • Blast to the Lonely Mushroom (Star 6, N64) (Star 5, DS) • 5 Secrets of the Mountain
Roll into the Cage (N64) • Luigi in the Cage (DS) • The Pit and the Pendulums (N64) • The Pendulum Switch Star (DS) • Get a Hand • Stomp on the Thwomp •Timed Jumps on Moving Bars • Stop Time for Red Coins • Tick Tock Silver Stars
Rainbow Ride
Cruiser Crossing the Rainbow • The Big House in the Sky • Coins Amassed in a Maze • Swingin' in the Breeze • Tricky Triangles! • Somewhere over the Rainbow • Switch Star of the Manor