| Boo | |
|---|---|
![]() Mario Kart World artwork | |
| Basic Information | |
Creator(s) |
Nintendo |
| Mario, Yoshi | |
| Biographical Information | |
Affiliation |
King Boo and Bowser |
Species |
Ghost |
| Personal Information | |
| Likes Scaring people, Dark areas, Hiding, Tricks | |
| Dislikes Mario, Luigi, Professor E. Gadd, Lights, Poltergust 3000 | |
| Powers Invisibility | |
| Featured in... | |
| Super Mario Bros. 3 Super Mario World | |
Boo is a recurring ghost species in the Mario franchise. While they are generally classified as enemies and part of the Koopa Troop, Boos have occasionally assisted Mario and his allies. Their defining behavioral trait is extreme shyness; a Boo covers its face and becomes immobile when a character looks directly at it, only choosing to pursue the target once the character turns their back.
Appearances[]
Super Mario series[]
Super Mario Bros. 3[]
Artwork for Super Mario Bros. 3
Boos made their debut in Super Mario Bros. 3, where they were originally referred to as Boo Diddleys and have had their core trait established. Boos are largely invulnerable and could only be defeated through the use of specific power-ups such as the Hammer Suit, Koopa Shells, the Tanooki Suit, or the Starman.
Super Mario World[]
The release of Super Mario World introduced Ghost Houses, levels dedicated entirely to Boos. While retaining their pursuit patterns from the previous game, Boos gained new animations, such as making faces at the protagonists.
The game significantly expanded the Boo varieties to include the Boo Buddy Block, Boo Buddy Snake, Boo Buddy Swarm, Circling Boo Buddies, and Disappearing Boo Buddies. Other ghostly variants introduced included the Eerie, the massive Big Boo, and the Fishin' Boo, which dangles a flame from a rod.
Super Mario Land 2: 6 Golden Coins[]
In Super Mario Land 2: 6 Golden Coins, Boos appear in levels of the haunted-themed Pumpkin Zone. The area also features Ghost Goombas, which are ghostly varieties of Goombas. It is possible to defeat Boos using a Koopa Shell.
Super Mario 64[]
In Super Mario 64, Boos inhabit a dedicated course known as Big Boo's Haunt. There are also Boos in the Courtyard of Peach's Castle; it is also where the player can access the course by Ground Pounding a Big Boo who shows up once they have collected at least twelve Power Stars. Defeating the smaller Boos in the courtyard yields a coin. Unlike previous titles, the Boos can be defeated with physical attacks such as punches, kicks, or Ground Pounds, and they typically drop Blue Coins.
Super Mario Bros. Deluxe[]
Boos appear in Super Mario Bros. Deluxe as the rival for the "You VS. Boo" mode, where the player has to race it to the level's flagpole. As the player wins within certain timeframes, the standard white Boo flies away and is replaced by progressively faster variants: first a Green Boo, followed by a Red Boo, and finally a Black Boo.
Super Mario Sunshine[]
In Super Mario Sunshine, Boos infest Hotel Delfino in the course Sirena Beach. They often disguise themselves as coins to trick Mario. Boos can be revealed and defeated either using FLUDD, jumping on them, or having Yoshi eat them. They look somewhat different from their standard design, having blue eyes and a tongue that always sticks out.
Besides the regular type, the game also includes two more varieties: Pink Boos, which solidify into platforms if sprayed by FLUDD's water, and Sleepy Boos, which obstruct paths in the attic and can only be defeated by Yoshi swallowing them.
Super Mario 64 DS[]
In Super Mario 64 DS, Boos are similar as before. They cannot be defeated by Yoshi because his Ground Pounds are too weak, and if Yoshi tries to swallow a Boo, he spits it back out. The Boos in the Courtyard now each contain a Red Coin, and defeating every Boo and collecting their Red Coins produces one of the secret Power Stars not in the original Super Mario 64.
Big Boo's Haunt, which now requires 15 Power Stars for Big Boo to show up, has a sub-area named Big Boo Battle, where Boos also appear, but it consists mainly of a boss fight at the end against King Boo (mistitled "Big Boo" in-game).
New Super Mario Bros.[]
New Super Mario Bros. features Boos in Ghost Houses, where they are vulnerable to Koopa Shells or the effects of contact with either Invincible Mario or Mega Mario, forms granted by the Super Star and Mega Mushroom, respectively.
More variants of Boos have been added: Balloon Boo, which inhales air to grow in size, and Broozer, a boxing ghost.
Super Mario Galaxy[]
Super Mario Galaxy features Boos in a few galaxies, including the Ghostly Galaxy, the Bigmouth Galaxy, the Deep Dark Galaxy, and the Sand Spiral Galaxy.
Boos maintain their nature of roaming areas. They can be knocked off course by Mario's spin attack and are vulnerable to bright light. The game introduces the Boo Suit, which changes Mario into Boo Mario, giving him the ability to levitate and pass through walls. Other Boos are shown to be infatuated with Boo Mario. Boos also appear underwater, where they attack by swimming back and forth.
The game introduces only one variety: the explosive black Bomb Boos. It also introduces one Boo character, the Spooky Speedster, who challenges Mario to races in certain galaxies.
New Super Mario Bros. Wii[]
Boo's artwork for New Super Mario Bros. Wii
In New Super Mario Bros. Wii, Boos appear in levels, where they behave like in New Super Mario Bros. Furthermore, a Boo appears outside every unfinished Ghost House on the world map. When Mario or another player character enters, the Boo does a taunting laugh. However, if the player character loses a life, he is kicked out of the Ghost House as the Boo briefly laughs at him. If the Ghost House is cleared, the Boo hides its face in shame.
The game does not introduce any Boo varieties, although both Circling Boo Buddies and Big Boos make a reappearance.
Super Mario Galaxy 2[]
In Super Mario Galaxy 2, Boos retain the same behavior as before. They are about as common as in the previous game, appearing in Haunty Halls Galaxy and Boo Moon Galaxy, while their underwater counterparts are in Battle Belt Galaxy and Slimy Spring Galaxy. The game introduces the Octoboo variety.
Super Mario 3D Land[]
In Super Mario 3D Land, Boos appear in Ghost House levels and retain their usual behavior. Boos are unaffected by projectiles such as fireballs from Fire Mario and boomerangs from Boomerang Mario, briefly vanishing whenever they are targeted by such an object. The game introduces Tail Boos, which swing their tails to attack.
New Super Mario Bros. 2[]
In New Super Mario Bros. 2, Boos appear with their standard behaviors. However, if Mario or Luigi triggers a Gold Ring, they and most other enemies change into their gold varieties. Instead of attacking, Gold Boos float away, leaving a trail of coins behind for Mario or Luigi to collect.
Mario Kart series[]
Super Mario Kart[]
In Super Mario Kart, Boo is featured as an item named "Ghost" in Battle mode only. When a racer activates the item, they become intangible and impervious to attacks for a short duration. Simultaneously, a small Boo travels to an opponent to steal their item and deliver it to the user.
Boos act as the primary atmospheric element for Ghost Valley 1, 2, and 3. They hover at the edges of the track and laugh at drivers passing by.
Mario Kart 64[]
In Mario Kart 64, the Boo item returns with similar mechanics to the previous game. It allows the user to drive through other racers and off-road terrain without losing speed. Unlike the first game, the item-stealing mechanic in this entry specifically targets a racer with a more valuable item, like a Spiny Shell, instead of a random opponent.
Boos inhabit the Banshee Boardwalk course, where they fly around in the air.
Mario Kart: Super Circuit[]
In Mario Kart: Super Circuit, Boos return as items that grant invisibility and steal weapons, retaining their traditional function. As track hazards, they appear in Broken Pier, where they aggressively lunge at drivers to slow them and take away their coins. Boos also appear as background elements in Boo Lake.
Mario Kart: Double Dash!![]
In Mario Kart: Double Dash!!, Boos have been relegated to a background role in the Luigi's Mansion battle stage.
Mario Kart Arcade GP sub-series[]
In the arcade installments Mario Kart Arcade GP and Mario Kart Arcade GP 2, the Boo appears as a lock-on attack item. Unlike the console Mario Kart titles, Boos temporarily reduce a racer's speed instead. The first game also exclusively features the item Triple Boos, giving the user three of that item.
Mario Kart DS[]
Boo in Mario Kart DS
Mario Kart DS features the return of the Boo as a standard item. It functions similarly as in Super Mario Kart, targeting a random racer for their item. The item grants invisibility as before but now also allows the user to drive off-road without slowing. Boos are ambient elements of the returning N64 Banshee Boardwalk and are depicted in some of the portraits in the Luigi's Mansion course.
Mario Kart Wii[]
In Mario Kart Wii, Boos have a minor role, serving as ambient creatures in the retro course SNES Ghost Valley 2, laughing at any incoming racers.
Mario Kart 7[]
In Mario Kart 7, Boos have only background appearances. In the returning course DS Luigi's Mansion, all of the portrait ghost paintings are replaced by Boos, which even attempt to break out as racers approach.
Mario Kart 8 / Mario Kart 8 Deluxe[]
In Mario Kart 8 and its enhanced port Mario Kart 8 Deluxe, Boos appear in the Twisted Mansion course, possessing the Hammer Knights toward the end. Furthermore, in Mario Kart 8 Deluxe only, Boos return as items.
Hotel Mario[]
In Hotel Mario, they are named "Boo Buddies." They come in two forms: one that behaves like in Super Mario Bros. 3 and Super Mario World and one that only attacks while invisible.
Super Mario RPG: Legend of the Seven Stars[]
Artwork for Super Mario RPG: Legend of the Seven Stars
Boos appear under the name The Big Boo in Super Mario RPG: Legend of the Seven Stars. They are encountered in the Kero Sewers. In the overworld, Boos cover their face with their arms when Mario looks at them, much like in the Super Mario series, although some teleport to ambush him instead. In battle, they frequently appear alongside Hobgoblins and Shadows. Although Boos lack Defense, they compensate for this with a high Evasion stat. For their standard attack, Boos float toward their target and pull a face. They have two lightning-elemental magic atacks: Lightning Orb and Bolt. Boos can also use Scream, which halves the target's Attack and Defense rating.
Mario Party series[]
Mario Party[]
Mario Party introduces the recurring non-playable role for Boos seen in later Mario Party games. They steal coins or a Star from an opponent on behalf of the player who passes their location. While stealing coins is free, the player must pay 50 coins to steal a Star. Boos appear on every board except Peach's Birthday Cake. A Boo also appears during the ending sequence of Luigi's Engine Room.
In minigames, Boos are the main hazards in Running of the Bulb. Here, they have the ability to possess characters, influencing them to attack the character with the lightbulb. Player characters can punch Boos to stop them from possessing them. In Pedal Power, the player character has to avoid a Boo who is comparable in size to a Big Boo. Boo is also one of the traceable shapes in Crazy Cutter.
Mario Party 2[]
Boos return in Mario Party 2. They retain their board function of stealing coins and Stars, though stealing coins now costs five coins instead of being free. Boos have an expanded role because they are part of the introduced Boo Bell item, in which a Boo appears immediately to offer its services regardless of the player's location on the board. Defensively, players can limit the amount of coins a Boo steals by rapidly pressing the A button. There is also an item called the Skeleton Key that allows players to access secret Boo paths.
In the minigame Day at the Races, a Boo appears as a betting option. It races by disappearing and reappearing further down the track, though it occasionally stalls by getting its face stuck in the ground.
Mario Party 3[]
In Mario Party 3, Boo retains its traditional role of stealing items on the board. It has a few other roles, further amplifying its role in the series.
Boo gains a major role in Duel Mode, where it is Yoshi's partner. Its statistics include an attack rating of 2, stamina of 1, and salary of 3. Boo can counter attacks and return the same amount of damage to the attacker.
On the board Waluigi's Island, a Boo guards the central junction. When a character reaches the Boo, it forces them to choose between two paths, one of which triggers an explosion that returns them to the Start Space.
Boos appear in various minigames including Curtain Call, Stacked Deck, Three Door Monty, and Crowd Cover.
Mario Party 4[]
In Mario Party 4, a Boo wearing a wizard's cape serves as the host for the board Boo's Haunted Bash. Boos are also featured throughout the board. Additionally, a Boo manages the Item Shop while another operates the Mystery Train when the Red Boo is absent from the Boneyard. Two Boos run the Boo House, where players can pay to steal coins or Stars, and the Crystal Ball item mimics this effect. The other boards Toad's Midway Madness, Koopa's Seaside Soiree, Goomba's Greedy Gala, Shy Guy's Jungle Jam, and Bowser's Gnarly Party have a Boo whom a character can reach to have the Boo steal coins and Stars from an opponent to receive themselves.
This game marks Boo's first appearance as a playable character in the series, although he is restricted to the unlockable minigame Beach Volley Folly.
Mario Party 5[]
Mario Party 5 is Boo's first appearance as a fully playable character in the standard Party Mode, along with Toad and Koopa Kid. Boo is often paired with Koopa Kid by default.
Since Boo has been made playable, it no longer serves as the standard mechanism for stealing Stars on the board, a role that has been transferred over to Chain Chomp via the Chain Chomp Capsule.
Mario Party 6[]
Boo's artwork for Mario Party 6 and Mario Party 7
Boo returns as a default playable character in Mario Party 6. Due to this inclusion, Red Boos assume the non-playable role of stealing coins or a Star from opponents on the Towering Treetop and Castaway Bay boards.
Mario Party Advance[]
Boos chasing Luigi in Boo-Bye in Mario Party Advance
In the handheld title Mario Party Advance, Boos appear as non-playable characters involved in various quests. In the "True-Blue Boo" quest located at the Boo Cemetery, a group of Boos tasks the player with identifying a fraud among them who stole a golden statue. The culprit reveals himself to be Koopa Kid in disguise. Another quest in the Horror Condo involves the player asking Boos to haunt a specific building to prove to a skeptic Snifit that the location is truly dangerous.
As a species, Boos appear in the minigame Boo-Bye, where the player character must guide them to their corresponding portraits, as well as Red Boos and Blue Boos. If the player touches a Boo, they lose. A Boo also appears in Spooky Spike, and the player character has to spike the beach balls it throws.
Mario Party 7[]
Boo returns as a playable character in Mario Party 7. Due to the game's emphasis on team mechanics, Boo is officially partnered with Dry Bones, and they both have the Magic Orb as their special item. The Red Boo variant appears as an antagonist in the minigame Ghost in the Hall, where it briefly startles player characters who take a wrong path down a corridor.
Mario Party 8[]
Boo and Dry Bones remain a playable pair in Mario Party 8. Following the standard of the two previous games, the Pink Boos facilitate the non-playable roles, such as in the minigame Boo-ting Gallery. King Boo makes an appearance and has an entire board of his own, King Boo's Haunted Hideaway.
Mario Party DS[]
Boo is not playable in Mario Party DS, so regular Boos are in the 1-vs.-3 minigame Peek-a-Boo and the 4-player minigame Boo Tag. In Peek-a-Boo, players must locate a specific type of Boo among a crowd of Boos wearing various outfits, and the side that gets the most target Boos wins. In Boo Tag, a Boo chases the characters. Once a player is tagged, they must run into an opponent to pass the Boo to them. In Boo Tag, the character who goes the longest without being tagged by a Boo wins.
Mario Party 9[]
In Mario Party 9, Boos are featured as obstacles on their own board, Boo's Horror Castle. They appear from portraits on the wall and move a few spaces after the characters once each of them have taken a turn. If a Boo catches up to the players' vehicle, the current captain loses half of their Mini Stars.
Mario Tennis series[]
Mario Tennis (Nintendo 64)[]
Boo appears as a playable character in Mario Tennis for the Nintendo 64. It is a character of the Tricky type who is part of the default roster. Boo does not have its own home court, unlike the other playable characters.
Mario Tennis (Game Boy Color)[]
In Mario Tennis for the Game Boy Color, Boos are audience members at Peach's Castle.
Mario Power Tennis[]
Boo returns as a playable character in Mario Power Tennis. His Offensive Power Shot is the Boo Blast and his Defensive Power Shot is the Boo Brigade Return.
In the cutscene shown if Boo wins a tournament, Mario and Luigi attempt to present Boo with a trophy. Boo is initially invisible, and trophy begins to float before Boo reveals himself underneath it. A swarm of Boos then lift Mario and Luigi into the air.
Mario Tennis Open[]
Boo is a selectable character in Mario Tennis Open. It retains the Tricky classification. Players can unlock Boo-themed equipment to equip on their Mii characters as well as unlock a Boo costume once the Item Shop has 100 items available for purchase.
Luigi's Mansion[]
Artwork of a Boo for Luigi's Mansion
In Luigi's Mansion, there are fifty regular Boos in total. All fifty of the Boos have names, except 15 of them which combine together to form a massive Boo boss named Boolossus. The game also introduces their leader, King Boo. The Boos and King Boo are all released from a hatch in the Storage Room after Luigi presses a certain button.
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Mario & Luigi: Superstar Saga[]
In Mario & Luigi: Superstar Saga, Boos appear in the form of a statue, which would trigger an event when pushed. However, as with all types of Boo, they would disappear if faced. Mario or Luigi had to push them with their back in order to complete the local quest.
Mario Baseball series[]
Mario Superstar Baseball[]
Boo appears in Mario Superstar Baseball as a playable character. Its pitching stats are tied with Peach, ranking only behind Waluigi and Bowser. Its special ability for fielding and running is the Super Jump. In Challenge Mode, Boo is a member of Wario's team by default.
Mario Super Sluggers[]
Boo returns in Mario Super Sluggers as part of the default roster of playable characters. In Challenge mode, Boo is part of Wario's team once again, and it can be recruited by locating it inside a crate in Wario City and completing its scout mission. Boo possesses a pitching stat of 9/10, tying with Peach for the highest in the game, although its other statistics range from average to low.
Boo has good chemistry with King Boo, Shy Guy, Magikoopa, and Blooper. Conversely, Boo has bad chemistry with Luigi, Baby Mario, and Baby Luigi.
This game introduces the Mini Boo item, which makes the ball invisible temporarily, and it can freeze a character in place until the Boos disperse.
In other media[]
Television[]
In the animated series The Adventures of Super Mario Bros. 3, Boos are referred to as "Boo Diddlys," much like in Super Mario Bros. 3. They have a role in the episode ""Reign Storm," where they terrorize a shopping mall.
Boos also appear in a few episodes of Super Mario World television series. They confronted Yoshi a few times, including in "Ghosts 'R' Us", through Wizenheimer's haunted house, and "The Night Before Cave Christmas", where they scare him away. In "The Yoshi Shuffle," Boos are audience members and do not contribute significantly to the plot.
Publications[]
In the Super Mario Adventures comic, a horde of Boos trap Mario and Luigi in a haunted house. Mario, dressed as a psychiatrist, and Luigi, dressed as a nurse, perform a therapy session on the Boos, who end up revealing that they act out because they were bullied in their youth. The Mario Bros. manage to reform the Boos through their therapy.
Boos appear as antagonists in the Nintendo Adventure Books. In Koopa Capers, they attack Luigi. In Mario and the Incredible Rescue, a group of Boos captures Princess Toadstool, but Mario eventually defeats them by casting a spell. They also appear as puzzle elements in books like Dinosaur Dilemma and Flown the Koopa.
Yoshi appearances[]
Yoshi puzzle series[]
Yoshi[]
In the puzzle game Yoshi, Boos are objects in both the A Type and B Type game modes. They resemble their sprites in Super Mario World. Template:Br
Yoshi's Cookie[]
In the VS Mode of Yoshi's Cookie, Boo appears as one of the earlier, lower-difficulty opponents and replaces one of the cookies after round 10. Fishin' Boo appears in the game.
Yoshi's Safari[]
Boos appear as enemies in Yoshi's Safari, specifically within the Ghost Mansion level of the Dark Realm, and a Big Boo is also a boss at the end. Boos can be defeated using the Super Scope.
Yoshi's Island series[]
Super Mario World 2: Yoshi's Island[]
In Super Mario World 2: Yoshi's Island, they are named Boo Buddies. They are first encountered in World 2-4: Bigger Boo's Fort. Boos sometimes follow behind a Big Boo. To defeat a Boo, a Yoshi has to look away from it and have a Yoshi Egg bounce off of the walls and hit it.
The game introduces three Boo varieties. Boo Blahs move in and out of the floor, similarly to Stretches from Super Mario Bros. 3. Boo Man Bluffs are pink Boos that are blindfolded and rely on sound to travel after Yoshi. Boo Guys are a cross between a Boo and a Shy Guy. Additionally, the mid-boss of World 2, Bigger Boo, also began as a Boo before Kamek enlarged it using his magic.
Yoshi's Island DS[]
In Yoshi's Island DS, Boos return, behaving identically as in Super Mario World 2: Yoshi's Island. There are also ghost enemies named Invisighouls that resemble Boos.
Yoshi platforming series[]
Yoshi's Story[]
Artwork of a Boo for Yoshi's Story, a game depicting them with a swirled unibrow.
In Yoshi's Story, Boos appear only in Stage 6-3: Ghost Castle, along with Boo Blocks and Blindfold Boos (previously named Boo Man Bluffs). The game uniquely depicts Boos with a swirled black unibrow. There is also a blue variant of them called Big & Little Boos found in a different level, Jelly Pipe.
Yoshi Topsy-Turvy[]

In Yoshi Topsy-Turvy, Boos are rare enemies that appear only in Mission 6-7. They behave the same way as in other platforming titles.
Crossover games[]
Yakuman DS[]
In Yakuman DS, Boos are among the opponents.
Tetris DS[]
In Tetris DS, Boos are items exclusive to multiplayer mode. They briefly prevent the opponent from seeing when the next Tetrimino is coming.
Notable members[]
- Big Boo
- Bigger Boo
- King Boo
- Lady Bow
- Lahla (Paper Mario: The Thousand-Year Door)
- Peeka (Paper Mario: The Thousand-Year Door)
List of appearances[]
Playable[]
- Mario Tennis (Nintendo 64) - 2000
- Mario Party 5 (GameCube) - 2003
- Mario Golf: Toadstool Tour (GameCube) - 2003
- Mario Party 6 (GameCube) - 2004
Other[]
- Super Mario Bros. 3 (NES) - 1990
- Super Mario World (SNES) - 1991
- Super Mario Land 2: 6 Golden Coins (Game Boy) - 1992
- Super Mario Kart (SNES) - 1992
- Super Mario All-Stars (SNES) - 1993
- Super Mario World 2: Yoshi's Island (SNES) - 1995
- Super Mario 64 (Nintendo 64) - 1996
- Super Mario RPG: Legend of the Seven Stars (SNES) - 1996
- Mario Kart 64 (Nintendo 64) - 1997
- Super Mario Bros. Deluxe (Game Boy Color) - 1999
- Mario Party (Nintendo 64) - 1999
- Mario Party 2 (Nintendo 64) - 2000
- Paper Mario (Nintendo 64) - 2001
- Mario Party 3 (Nintendo 64) - 2001
- Mario Kart: Super Circuit (Game Boy Advance) - 2001
- Luigi's Mansion (GameCube) - 2001
- Super Mario World: Super Mario Advance 2 (Game Boy Advance) - 2002
- Super Mario Sunshine (GameCube) - 2002
- Mario Party 4 (GameCube) - 2002
- Mario Kart: Double Dash!! (GameCube) - 2003
- Super Mario Advance 4: Super Mario Bros. 3 (Game Boy Advance) - 2003
- Mario and Luigi: Superstar Saga (Game Boy Advance) - 2003
- WarioWare, Inc.: Mega Microgame$ (Game Boy Advance) - 2003
- Mario vs. Donkey Kong (Game Boy Advance) - 2004
- Mario Pinball Land (Game Boy Advance) - 2004
- Super Mario 64 DS (Nintendo DS) - 2004
- Mario Party Advance (Game Boy Advance) - 2005
