Gold Mario and Silver Luigi are forms debuting in New Super Mario Bros. 2, acquired by grabbing a Gold Flower. In this form, Mario can shoot gold fireballs and Luigi can shoot silver fireballs, defeating any enemy or breaking any Brick Blocks that is within a certain distance or any that they touch, turning them into coins. In addition, the blast will also empty out any blocks that contain items.
Occasionally, not unlike other power-up forms, Gold Mario appears as a separate character from regular Mario.
Super Mario series
New Super Mario Bros. 2
Gold Mario debuted as a power-up form in New Super Mario Bros. 2. In this form, the character becomes a glowing statue made of gold. In Luigi's case, he becomes a glowing statue made of silver. In both cases, the form resembles Mario's metal form since gold and silver are a type of metal. If Mario/Luigi reaches the Flagpole in this form, he receives a coin bonus. The higher the pole is grabbed, the more coins he will receive. Gold Mario/Silver Luigi reverts into Fire Mario/Luigi upon clearing a stage, making it impossible to keep this power-up between levels. Gold Mario is able to defeat almost every enemy in the game, including Boos, Thwomps, and even Spiked Balls (though not giant ones), rivaling the power of Hammer Mario. He can also defeat bosses, but they take more than one hit to be defeated (with the exception of Bowser and Dry Bowser). The power-up, however, has no effect against the Boohemoth.
Gold Mario and Silver Luigi can also gain coins by defeating consecutive enemies, either by stomping on them without touching the ground, hitting multiple enemies with a shell, or staying under the effect of an Invincibility Star. The values gained consecutively are 5, 10, 15, 20, and 50 coins. When the area is under the influence of a Gold Ring, these values double to 10, 20, 30, 40, and 100 coins. The same values apply if a single blast from the Gold Flower defeats multiple enemies at once.
Super Mario Maker
One of the Mystery Mushroom costumes the player can obtain by chance after winning the 100 Mario Challenge in Super Mario Maker is that of Gold Mario (referred to as "Mario (Gold)"). This costume can likewise be unlocked if the Mario - Gold Edition amiibo is scanned upon the Wii U's GamePad. The costume consists of the original sprite of Mario from Super Mario Bros., only gilded. While acquiring this costume, the transformation sound effect from New Super Mario Bros. 2 can be heard. Sparkling sounds can also be heard at the time of wearing the costume. Gold Mario's blunt position, seen if the player presses on the controller, is that of him raising his hand while looking at the player. All of these traits are shared with the Silver Mario costume, which can be unlocked either by completing the 100 Mario Challenge, or by scanning its respective amiibo on the GamePad. Collecting a Super Star while this costume is active plays the Metal Mario theme from Super Mario 64 rather than the normal invincibility theme; this is also shared with the Silver Mario costume.
Mario Golf: World Tour
Gold Mario appears as a separate downloadable character in Mario Golf: World Tour. He has the same stats, voice, and animations as the actual Mario with the only different one being his Double Bogey animation, where he turns into Super Mario instead of Small Mario. He has a permanent Gold Flower shot, meaning he collects a coin for every yard the ball travels. This means he can not use special shot types (Power, Item, or Approach) and is not allowed in Coin-Collecting Tournaments or challenges. He also cannot be played against in match play, but may be played as instead. To obtain Gold Mario, all three downloadable packs, the Mushroom, Flower, and Star, must be bought.
Super Smash Bros. for Nintendo 3DS
On the Golden Plains stage in Super Smash Bros. for Nintendo 3DS, if a character collects 100 of the coins scattered across the stage, they turn gold temporarily. While in this form, the character's attack power is increased, and the character does not flinch and cannot be launched. Despite this, the character can still be launched by being grabbed and thrown. While in the form, the character cannot collect additional coins until the form wears off. Unlike New Super Mario Bros. 2, Luigi does not turn silver when he attains this form.
Mario Kart Arcade GP DX
Mario Tennis: Ultra Smash
In Mario Tennis: Ultra Smash, it is possible to have Gold Mario as an amiibo doubles partner if the player uses a Mario - Gold Edition amiibo. Gold Mario himself is otherwise not a playable character.
Puzzle & Dragons: Super Mario Bros. Edition
Gold Mario appears in Puzzle & Dragons: Super Mario Bros. Edition as a Leader, available with the game's digital update to version 2.0, unlocked after earning an S rank or higher in Course 4 of the Fixed Challenge mode in Score Attack. Gold Mario is a Light/Light attribute teammate with an HP rating of 4/6, an ATK rating of 3/6 and RCV rating of 5/6. Gold Mario's Skill, Gold Shine, changes Wood Orbs on the Orb field into Light Orbs, while his Leader Skill, Gold Sunshine, raises the ATK of the entire team by 3x if the player clears two Light combos, or by 4x for three Gold combos or more. Gold Mario uses Fruit and Rare Fruit to raise his Skill Levels.
Gold Luigi appears as a Leader as well, unlocked after earning an S rank or higher in Course 4 of the Free Challenge mode in Score Attack. Gold Luigi is a Light/Light attribute teammate with an HP rating of 5/6, an ATK rating of 3/6 and RCV rating of 3/6. Gold Luigi's Skill, Gold Flash, changes Water Orbs on the Orb field into Light Orbs. Gold Luigi shares the same Leader Skill and Skill item requirements as Gold Mario.
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