Boo Mario

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Boo Mario
Boo Mario Super Mario Galaxy 2.png
Used on Mario, Luigi
Item needed Boo Mushroom
Power(s) given Can float, go through walls, turn invisible, attract Boos, understand Booish
First appearance Super Mario Galaxy (2007)
Latest appearance Super Smash Bros. Ultimate (spirit cameo) (2018)

Boo Mario is a form of Mario that debuted the game Super Mario Galaxy. As its name implies, the Boo Mario form is Mario disguised as a Boo, although his hat and face remain respective of his normal form. Boo Luigi, the equivalent form of Luigi, shares the same traits though with his respective features. In Super Mario Galaxy, Luigi has a sorrowful look on his face, though he does not in Puzzle & Dragons: Super Mario Bros. Edition.

Luigi cowering at the sight of Boo Mario.

In order to become Boo Mario, Mario must grab a Boo Mushroom. With this transformation, Mario can turn himself invisible and pass through certain walls and gates by shaking the Wii Remote, levitate by pressing the A Button button, and descend by holding Nunchuk Z Button. The walls Mario can pass through as Boo Mario are similar to the ones he can pass through with Vanish Cap in Super Mario 64. Mario can also understand the language of the Boos, called Booish, meaning bill boards written in that language can be understood by him once he transforms. His Boo form also attracts other Boos, causing them to follow him around and allow him to make use of them for various purposes. The transformation is lost if Mario takes damage, passes through light, touches water, or touches a Launch Star.

Mario first uses this transformation in the Ghostly Galaxy to rescue Luigi. Because Luigi is afraid of ghosts, he cowers when Mario approaches him in Boo form; therefore, Mario must return to his normal form beforehand. It is also used in Boo's Boneyard Galaxy and Sand Spiral Galaxy. This power-up does appear in Super Mario Galaxy 2, but in only one galaxy: the Boo Moon Galaxy in the mission "Haunting the Howling Tower", where the power-up is very widely used.

Boo Mario, as well as Luigi's equivalent form, also appears in Puzzle & Dragons: Super Mario Bros. Edition. He also appears as a support spirit in Super Smash Bros. Ultimate, increasing the fighter's jump height and move speed but making them easier to launch.

Aside from the games, Boo Mario also appears in animated sticker where it shows Mario defeated, with Boo Mario emerging from him as if Mario had died.

Super Mario Galaxy Trading Card description[edit]


In the deep recesses of the Ghostly Galaxy, strange and frightening spirits are after Mario. To help Mario navigate this scary place, he can grab a Boo Mushroom and power up to become Boo Mario! This allows him to become invisible, float like a Boo, and pass through walls.

Super Smash Bros. for Wii U trophy[edit]

Name Image Appears In NTSC-U Description PAL Description
Boo Mario SSB4TrophyBooMario.png Wii Super Mario Galaxy (11/2007)
Wii Super Mario Galaxy 2 (05/2010)
Are you afraid of ghosts? Maybe it will help to see the world as they do. Become Boo Mario with a Boo Mushroom, and then explore their world! Shake your Wii Remote to make Boo Mario go through walls. Boo Mario blends in OK, but even as a ghost he keeps his trademark hat. The other Boos don't seem to mind, thankfully. Boos are always tricky to deal with, so if you can't beat 'em, join 'em! All you need to do is grab a Boo Mushroom, and you'll become a Boo, letting you turn invisible, slip straight through walls and even speak Booish! You'd think Boos wouldn't fall for it, what with that trademark cap still firmly on top of your head...but luckily, they do.


Names in other languages[edit]

Language Name Meaning
Japanese オバケマリオ
Obake Mario
Obake Ruīji
Ghost Mario

Ghost Luigi
Spanish Mario Fantasma
Luigi Fantasma
Ghost Mario
Ghost Luigi
French (NOA) Mario Boo
Luigi Boo
French (NOE) Mario Fantôme
Luigi Fantôme
Ghost Mario
Ghost Luigi
Italian Mario Spettro
Luigi Spettro
Ghost Mario
Ghost Luigi
Portuguese Mario Boo/Fantasma
Luigi Boo/Fantasma
Boo Mario
Boo Luigi
Russian Марио-бу
Boo Mario
Chinese 幽灵马力欧
Yōulíng Mǎlìōu
Yōulíng Lùyìjí
Ghost Mario

Ghost Luigi