Big Boo

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"Giant Boo" redirects here. For information about the lazy variant from Super Mario Sunshine, see Sleepy Boo. For Boos from Super Mario RPG: Legend of the Seven Stars, known as "The Big Boo", see History of Boos § Super Mario RPG: Legend of the Seven Stars.
Big Boo
A Big Boo from Super Mario 3D World.
Artwork from Super Mario 3D World
First appearance Super Mario World (1990)
Latest appearance Super Mario RPG (Nintendo Switch) (2023)
Variant of Boo
Notable members
“I may not be the king, but I sure am BIG. Big enough to crush you!”
Big Boo, Luigi's Mansion: Dark Moon

Big Boos, also known as Atomic Boos, are a species of Boo. Usually, they resemble and behave similarly to normal Boos, except they are larger and stronger.


Super Mario series[edit]

Super Mario World[edit]

The Big Boo
Small Mario fights the Big Boo boss in the hidden path of the Donut Secret House.

The Big Boos (formatted as The Big “Boo” in-game) first appear in Super Mario World. In the game, Big Boos inhabit the various Ghost Houses located around Dinosaur Land. They first appear in the Donut Secret House. They are four times bigger than a normal Boo Buddy in both height and width, but they still have the same mannerisms of their smaller counterparts, meaning that when looked at, they hide behind their arms, occasionally peeking to see if they are still being looked at. However, if Mario's or Luigi's back is turned, a Big Boo attacks him from behind.

In the game, Big Boos are much more difficult to pass than their smaller brethren. As such, Mario or Luigi usually has to use a Jumping Board to jump over them. However, if Mario or Luigi can get a running start, he can usually spin-jump over a Big Boo. Additionally, if there is room, the brothers can use a Cape to fly over a Big Boo or perform a sliding attack during descent to defeat the Big Boo.

In Super NES-era Player's Guides, the Big Boo enemy is known as Big Blue Boo[1][2] to differentiate from the Big Boo boss.[3][4]

The Big Boo boss is a hidden encounter of the Donut Secret House. This Big Boo does not hide when Mario or Luigi is facing it, but it periodically changes from invisible to visible. It can be defeated by throwing Grab Blocks at its face while it is visible. This boss does not damage Mario or Luigi, but two normal Boo Buddies accompany it. Once the Big Boo is defeated, a new path is revealed on the overworld, leading to Star World. Unlike the Koopalings and Reznors, the Big Boo can be refought in all versions of the game.

During development, when "Boo" Buddies were still referred to as "Boo" Diddlys, the name for the Big "Boo" was originally going to be localized as "Boo" Jackson, a reference to multi-sport athlete Bo Jackson.[5]

Super Mario 64 / Super Mario 64 DS[edit]

Big Boo's official artwork.
A Big Boo from Super Mario 64

Big Boos return in Super Mario 64. Again, a Big Boo disappears when looked at and becomes visible again when Mario turns away. Big Boos have a high-pitched laugh like a normal Boo, but they make the same low-pitched grunt as a Thwomp does (changed to the sound made when a platform drops in the DS remake) when hit. If these Boos attack Mario, he loses three wedges of health. They use the same model as normal Boos but enlarged.

Mario and Big Boo on the balcony of the mansion in Big Boo's Haunt.
The first boss fight against Big Boo in Super Mario 64, taking place on the balcony of the mansion

Big Boos can be attacked only when visible, so Mario has to attack these massive ghosts by either ground-pounding them from above or punching them from the side. There is one Big Boo in the courtyard. This one is larger than the other Boos in the courtyard, but only slightly so. If Mario defeats this one, it drops a carousel,[6] leading to Big Boo's Haunt. In this course, Mario can fight three larger Big Boos. These Big Boos take three hits to defeat, becoming smaller after each hit. However, if the player leaves the area before completely defeating a Big Boo, the Big Boo's health resets. After defeating a Big Boo, Mario receives a Power Star.

In the Japanese version, the name of the standard Big Boo translates to "Boss Boo," and the name of the one that appears when all of the house's Boos are defeated translates to "Master Boo."

The original version of Super Mario 64 shows the Big Boo's laugh in the mission Go on a Ghost Hunt as "Ka ha ha ha!" in the text box. In the remake, "Ha ha ha ha!" is written instead.

In Super Mario 64 DS, Big Boos play the same role as in the original, but the boss ones now have their own, more sophisticated model and are faster. Yoshi cannot defeat Big Boos due to low attack power, just like with the normal Boos. He also cannot lick them up. Due to his inability to enter Big Boo's Haunt, this can only be seen without manipulating the game with the smaller one in the courtyard. King Boo also makes an appearance and shares an internal model with the Big Boo, though while he retains his crown from Mario Kart: Double Dash!! and characteristic cackle, he is erroneously referred to as "Big Boo" in English versions.

Super Mario Sunshine[edit]

Regular Big Boos do not directly appear in Super Mario Sunshine; however, an obstructive variant known as Sleepy Boos appear, and the Golden Boo in Episode 2 of Sirena Beach is also described as a Giant Boo statue.[7] A boss known as King Boo additionally appears to be based on a Big Boo.

Super Mario Advance 4: Super Mario Bros. 3[edit]

In Super Mario Advance 4: Super Mario Bros. 3, a Big Boo appears in the first room of the World-e level Vexing Doors. The Super Mario World boss also appears at the end of the level, as well as a previous level, Doors o' Plenty. Unlike in Super Mario World, however, the Big Boo can damage the brothers while he is solid. Also, the brothers cannot kick blocks upward and must instead jump to the Big Boo's level to kick blocks at him in midair. While Mario or Luigi must use White Blocks instead of Grab Blocks, the method of defeating the Big Boo remains the same as in Super Mario World.

The unused sprites in the game show the Super Mario World 2: Yoshi's Island iteration of the enemy, specifically using alternate sprites that were likewise unused in the source.

Super Mario Galaxy[edit]

The Atomic Boo in Super Mario Galaxy

In Super Mario Galaxy, one Atomic Boo appears in the "Boo in a Box" mission. It uses a model separate from the regular Boo (labeled "TeresaChief"; compare "KuriboChief"), but the object is scaled at nearly one-third its native size in the game itself. Despite this, it is still visibly bigger than regular Boos. The Atomic Boo must be lured into the light to defeat it and obtain its Power Star.

An individual Atomic Boo named the Spooky Speedster is found in two areas of the game. Mario must race him twice to win a Power Star: once in the Ghostly Galaxy and once again in the Boo's Boneyard Galaxy.

New Super Mario Bros. Wii[edit]

Big Boos as they appear in New Super Mario Bros. Wii

Big Boos reappear in the game New Super Mario Bros. Wii, and act much like they do in Super Mario World. They can only be encountered in Ghost Houses, and are usually seen with many smaller Boos. Unlike regular Boos, a Big Boo does not stop attacking unless every player is facing it, unless there are 4 players, in which case, only 3 need to face it.

Super Mario Galaxy 2[edit]

Four Boos and a Mega Boo chase Mario in Super Mario Galaxy 2.
The Mega Boo and four Big Boos in Super Mario Galaxy 2

In Super Mario Galaxy 2, four Big Boos make an appearance accompanying the Mega Boo in the Haunty Halls Galaxy. This time, they use a downscaled version of the Mega Boo's model (labeled "TeresaAtomic"). The version of Atomic Boo from Super Mario Galaxy is an unused leftover with its model deleted from the game data.

Super Mario 3D Land[edit]

These gigantic Boos reappear in Super Mario 3D Land, where they behave similarly to their New Super Mario Bros. Wii counterparts. They appear in a few Ghost Houses. Sometimes, if Mario is very far away from the Big Boo and looks in the opposite direction, it floats away instead of drifting towards him.

New Super Mario Bros. 2[edit]

Gold Big Boo
A Gold Big Boo leaving a trail of coins.

Big Boos reappear in the Ghost Houses of New Super Mario Bros. 2. They can be turned into Gold Big Boos by passing through a Gold Ring. While in their golden form, they cover their faces and leave a trail of coins behind them for Mario to take. Whenever it covers its face, the Big Boo glows red, while it radiates a dark shadow around it once Mario stops staring at it.

This game introduces a new type of Big Boo known as Boohemoth.

New Super Mario Bros. U / New Super Luigi U / New Super Mario Bros. U Deluxe[edit]

Big Boos reappear in New Super Mario Bros. U, New Super Luigi U, and New Super Mario Bros. U Deluxe, once again only appearing in Ghost Houses. Nothing changes about their behavior, but if the player looks at a Big Boo they will begin to sweat.

Super Mario 3D World / Super Mario 3D World + Bowser's Fury[edit]

Shiftier Boo Mansion in the game Super Mario 3D World
Big Boo in Super Mario 3D World

Big Boos also appear in Super Mario 3D World and its Nintendo Switch port Super Mario 3D World + Bowser's Fury with the same behavior of Super Mario 3D Land. Some can be seen outside the windows in Ghost Houses watching the player, but these Big Boos do not do anything special. Big Boos can now be defeated by Light Boxes, leaving coins.

Super Mario Maker / Super Mario Maker for Nintendo 3DS[edit]

Big Boos reappear in Super Mario Maker and Super Mario Maker for Nintendo 3DS. The player can enlarge a normal Boo with a Super Mushroom, transforming it into a Big Boo although being slightly smaller than in other games, similar to the Yoshi's Island games. The player can also give them wings which make them slightly faster. They can also be put in Clown Cars, Lakitu's Cloud and on tracks.

Super Mario Maker 2[edit]

Big Boos reappear in Super Mario Maker 2, retaining their behavior in its predecessor; this time, they can now also be attached to parachutes.

Super Mario World television series[edit]

A Big Boo, with three Boos, from the Super Mario World episode "Ghosts 'R' Us"
A Big Boo, with three Boos, from the Super Mario World episode "Ghosts 'R' Us".

Big Boos appeared in two episodes of the Super Mario World animated series. In the episode "Ghosts 'R' Us", Yoshi, while exploring Wizenheimer's haunted house, encounters a Big Boo and three regular Boos. Terrified of the Boos, Yoshi proceeds to run away in a panic as the four ghosts give chase. After running some time through the haunted house and losing the three regular Boos, Yoshi manages to trick the Big Boo into entering a vacant room. With the Big Boo apparently trapped in this room, Yoshi locks the door. Unfortunately, the Big Boo simply phases through the wall and resumes chasing Yoshi. Yoshi eventually escapes his Big Boo tormentor by fleeing into the basement of the haunted house.

In Super Mario World's final episode, "Mama Luigi", a Big Boo is seen acting as a guard to Neon Castle, likely a misinterpretation of Bowser in the Koopa Clown Car flying over it in the game's map. Mario, Luigi and Yoshi easily sneak past this Big Boo guard by using a nearby Warp Tube, which leads to the basement of Neon Castle.

Super Mario Adventures[edit]

The Big Boo trying to sneak up on Mario and Luigi while Boos distract them.

An unnamed Big Boo was also featured prominently in the Super Mario Adventures comic by Nintendo Power. After being lured into a Ghost House, Mario and Luigi, after an encounter with several dozen Boos, encounter a Big Boo. Attempting to stare down this Big Boo and the swarm of Boos, Mario and Luigi become exhausted after hours of simply staring at the shy ghosts. Nearly collapsing of exhaustion, Mario spots a door and, dragging Luigi, dashes to it, with the Boos and Big Boos after him. Bursting through the door of the room Mario and Luigi just entered, the Big Boo and his Boo minions are surprised to see Mario dressed as a doctor, with Luigi as his nurse. Acting as a psychiatrist, Mario manages to learn that, as a child, this Big Boo was constantly bullied, which led to its vicious behavior. After hearing this Big Boo's sad tale, Mario gives some helpful words of wisdom and advice. The Big Boo, having become a changed ghost through Mario's therapy, happily leads Mario out of the Ghost House and gratefully thanks him as Mario, Luigi, and Yoshi take-off to Bowser's Castle. Another Big Boo was later seen among the attendees to Bowser's wedding to the brainwashed Princess Toadstool.

Yoshi's Safari[edit]

The Big Boo appears as the boss of the level Ghost Mansion in Yoshi's Safari, Mario must shoot it with the Super Scope as he makes parts of the wall fall down on him. Later the Boo separates into three Circling Boo Buddies. Mario must shoot the one with his tongue out to win.

Hotel Mario[edit]

In Hotel Mario, Big Boos first appear in Ludwig's Thump Castle Hotel and are powerful enemies, being about one-sixth the size of a hotel floor, but are slower than normal Boos. Big Boos in this game attack in a manner similar to the ones of Super Mario World, slowly floating towards Mario or Luigi when they look away, stopping and hiding behind their arms when directly looked at. Unlike the game's normal Boos, they are never transparent. When the player character is in a room or elevator, the Big Boo will lose track of them and wander in simple diagonal movements with a slightly confused expression.

Mario's FUNdamentals[edit]

In Mario's FUNdamentals, Big Boos appear on a suit of playing cards in Go Fish.

Yoshi's Island series[edit]

In Super Mario World 2: Yoshi's Island, they appear in many Towers and Castles. However, in this game, they are only twice as large a normal Boo in height and width, making them half as large as the ones in Super Mario World. Like normal Boos, they could only be defeated by looking away from the ghost and bouncing an egg off a wall, hitting the ghost in the face. They release Stars when defeated. Additionally, one of the bosses, Bigger Boo, starts as a normal Big Boo before being transformed by Kamek's magic.

Big Boos also appear as enemies in both sequels, Yoshi's Island DS and Yoshi's New Island, acting no differently than in Super Mario World 2: Yoshi's Island.

Super Mario RPG: Legend of the Seven Stars[edit]

Bowser using the move Terrorize on a Hippopo.
Big Boo as seen in Super Mario RPG: Legend of the Seven Stars, in Bowser's Terrorize move

In Super Mario RPG: Legend of the Seven Stars, one Big Boo has a cameo appearance in this game. It is used in Bowser's Terrorize attack.[8] While there is an enemy called "The Big Boo", it is in fact a misnamed regular Boo.

Mario Party series[edit]

Mario Party[edit]

A Big Boo appears in Running of the Bulb, where it slowly chases players down a hallway with other Boos and Thwomps. If the Big Boo catches a player, they will be eliminated. One of the players must carry a lightbulb to a socket at the hallway's end, but if the Big Boo catches that player (or the player gets hypnotized by a regular Boo and walks into the Big Boo), all the players will lose.

Mario Party 2[edit]

Big Boo's appearance on the Horror Land board of Mario Party 2

In Mario Party 2 a Big Boo appears in the Horror Land stage. As a typical Boo, it is able to steal objects from player's rivals, being coins or stars. However, Big Boo deals for stealing the coins or the stars from all the opponents, while paying to him three times the amount of coins than a normal Boo would do. Characters can ask for him only in night time; in daytime, Big Boo appears as a giant Boo statue. Since Big Boo can only be visited at night after taking a path that requires the Skeleton Key, meeting him proves to be a difficult and rare opportunity for players, especially during "Lite Play" mode.

In Mario Party Superstars, Big Boo is replaced with King Boo on the original Horror Land board.

Mario Party 4[edit]

In Mario Party 4, Big Boo reappears in the board Boo's Haunted Bash, having the same role as in Mario Party 2. In the game, it appears in an odd blue color, contrasting the Red Boos. It appears when the two Happening Spaces at the top right of the board are activated three times. The Gaddlight has no effect on it.

Mario Party-e[edit]

In Mario Party-e, a Big Boo appears in Bolt from Boo, where two players must outrun it. If it catches Mario, the game is over. It uses its sprite from Super Mario World.

Luigi's Mansion series[edit]

Luigi's Mansion[edit]

Big Boos do not directly appear in Luigi's Mansion and its remake; however, a boss known as Boolossus is based on a Big Boo, being an enormous Boo made of 15 smaller Boos.

Luigi's Mansion: Dark Moon[edit]

Big Boo
The Big Boo in Luigi's Mansion: Dark Moon

In Luigi's Mansion: Dark Moon, a Big Boo is one of the three bosses fought in Treacherous Mansion, the final mansion in the game, in the mission Ambush Maneuver. Luigi and E. Gadd were tricked by King Boo to come into the miniature train station inside the Train Exhibit, because E. Gadd thought that King Boo was there along with Mario's painting. Ten Boos are inside a mini train display in which they come together to form into Big Boo. The 10 Boos that assemble together are the only ghosts in the game who are not sucked into the Poltergust 5000, as they are trapped in the trains' cages and later placed in the Boo Canister by E. Gadd.

In battle, the Big Boo has three attacks. Its first attack involves it trying to crush Luigi from above. It attempts to crush Luigi three times in a row. If it misses all three times, it is momentarily dazed from hitting his face on the ground the third time. Its other attack involves hiding halfway in the ground and attempting to charge into Luigi from there. If it misses Luigi and hits the moving train, it is stunned. However, if it misses Luigi and the train, it just floats back into the arena. When separated into individual Boos, they can ram into Luigi. The third attack happens only if Luigi pulls back on Big Boo's tongue for too long, in which the boss will recover and ram into Luigi. This attack is also used by the Boos.

To defeat Big Boo, Luigi has two different methods of attacking it. The first one involves avoiding Big Boo while it slams into the ground three times before becoming stunned. Luigi has to pull Big Boo's tongue and launch it into the drill of the moving toy train. The other way is to make Big Boo dash slightly in front of the train. When the Big Boo hits the drill on the train, he splits into ten Boos. Luigi must pull their tongues and send them flying towards the carriages of the train. When one of them hits a carriage, that Boo gets imprisoned inside the carriage and is unable to escape. Once all of Boos have been imprisoned in the carriages, the mission is complete and the Pixelator takes Luigi out of the train display and back to the Bunker. Afterwards, E. Gadd Pixelates the Boos into the Boo Canister.

Although it is named "Big Boo" in English versions of the game, it shares the same Japanese name as Boolossus.

Game & Watch Gallery 4[edit]

Luigi fighting Big Boo in boxing
Big Boo fighting Luigi during a boxing match in Game & Watch Gallery 4

Big Boo is an opponent in the Modern version of Boxing from Game & Watch Gallery 4. He is Luigi's second opponent. However, instead of boxing gloves, Big Boo uses smaller Boos to pummel his opponent.

If the player selects the game yet waits several seconds, a humorous animation will play. Specifically, several Waluigis pop up from the floor, and Big Boo throws his boxing glove Boo at them in a similar manner to a bowling ball, and is overjoyed at getting a strike.

Paper Mario series[edit]

Paper Mario: The Thousand-Year Door[edit]

Atomic Boos make their Paper Mario series debut in Paper Mario: The Thousand-Year Door, with a single one appearing as an optional mini-boss in Creepy Steeple. It closely resembles the sprite of Bigger Boo, similar to how normal Boos in this game are based on its artwork. This Atomic Boo is composed of approximately two hundred different Boos. Mario can only fight it by going to the Creepy Steeple after freeing the 200 Boos in Chapter 4 (if he guesses the number right, a Boo gives him an Ultra Shroom). Even though Mario agrees to be nice to the Boos, they swarm him as soon as they are free. If Mario disperses those Boos a few times with the spin ability of his Super Hammer, the Boos combine together to form the Atomic Boo.

The Atomic Boo attacks by flinging Boos at Mario, charging up a powerful glare attack, hiding his face and becoming invisible like regular Boos, floating over and falling onto both Mario and his partner, and inflicting Mario with status ailments such as confusion and paralysis. In the battle with Atomic Boo, Mario's audience consists of solely Boos. Once Atomic Boo is defeated, it drops the Lucky Start badge that Mario can collect, and the Boos stop their swarming, appearing as normal enemies.

A graphic of a Dark version of Atomic Boo is unused. It is reasonable to assume that it would have been a more powerful version of Atomic Boo.

It is possible for the Lucky Start badge to drop down the hole revealed by pushing the star statue. If this happens, the badge can be purchased from the Lovely Howz of Badges for 70 coins.[9]

It is also worth noting that, despite being made of 200 Boos, it is still smaller than Boolossus, which is made of only fifteen. The Big Boo of Luigi's Mansion: Dark Moon, however, is roughly the same size as the Atomic Boo, and is made from ten Boos.

Super Paper Mario[edit]

Atomic Boos appear infrequently in Super Paper Mario. Only one appears in Merlee's Mansion, where it is considerably weaker than the one encountered previously. This Atomic Boo attacks the player by charging at them while they are facing away from them, turning intangible if it is faced. As such, it attacks like the Big Boos of the Super Mario series, albeit somewhat slower than usual, as well as being susceptible to jumps. Multiple Atomic Boos occasionally appear in the Mansion Patrol minigame; though slower than regular Boos. Defeating one gives many more points than defeating a regular Boo.

Paper Mario: Sticker Star[edit]

In Paper Mario: Sticker Star, the enemy is referred to as Big Boo, and it looks like a large, crumpled paper ball with a Boo face to go with the game's paper motif. The Big Boo only appears once in the entire game and is a mini-boss found in World 4. It is formed when Kamek combines the Boos found in the Enigmansion.

In battle, the Big Boo's only attack is eating Mario and then spitting him out. However, once the Big Boo uses its turn, the candles light up and the Big Boo turns invisible. During this time, Mario is unable to attack the Big Boo, but the Big Boo is still able to hurt Mario. In order to make the mini-boss visible again, a Thing sticker with wind or water properties needs to be used in order to extinguish the candles. However, using a Thing sticker with fire properties such as Matches and Lighter while the candle is put out relights it. Although the Big Boo is invisible while the candle is lit, it can still take damage from Spike Helmet or Poison Mushroom.

Once the Big Boo has been defeated, the Book of Sealing stays on its pedestal and the mansion is free of ghosts.

Mario Pinball Land[edit]

Big Boo in Mario Pinball Land

In Mario Pinball Land, Big Boo is one of the five bosses. He appears in the haunted house at the Fun Fair. To defeat him, Mario has to attack him from behind or quickly attack him when he turns visible. He has no direct attacks but instead approaches Mario continuously. If Mario comes into contact with Big Boo while the latter is invisible, Mario temporarily spins out of control as if in a daze. Hitting Big Boo grants 10,000 points each time, and doing so three times defeats him and grants 500,000 points. Once defeated, Big Boo leaves behind four Yellow Coins, four Blue Coins, and a Star Key.

Big Boo reappears and is fought again after all the Boos are defeated in his rematch room in the Fiery Stage. This time, defeating him grants 1,000,000 points and yields the player a Star.

Yoshi Topsy-Turvy[edit]

In Yoshi Topsy-Turvy, Big Boos appear in the Tale of the Spirit of Kindness and the Tale of the Spirit of Fright. They are much more common than the smaller Boos, which are only in the latter.

Dance Dance Revolution: Mario Mix[edit]

A Big Boo appears in the Dance Dance Revolution: Mario Mix song Boo Boogie as a Mush Mode mechanic, where it moves up the screen to cover oncoming notes when the player misses steps. Stepping on Mini Boos causes the Big Boo to recede.

Super Princess Peach[edit]

A Big Boo from Super Princess Peach
The Big Boo from Super Princess Peach

Big Boos also appear in Super Princess Peach, where they retain their behaviors from Super Mario World. Unlike normal Boos, they are invincible. In Shriek Mansion 3-3, there is one particular Big Boo that is initially locked in a cage. Princess Peach must release that Big Boo from the cage by hitting a nearby ! Block and then lure it into a ray of light that stuns the Big Boo, after which it becomes harmless and can be used as a platform.

This game also introduces a Big Boo species affected by the Rage vibe, the Mad Big Boo. Like normal Mad Boos, they stay still when Peach turns away from one, and chases after her when she looks at it.

Mario Golf: World Tour / Mario Sports Superstars[edit]

In Mario Golf: World Tour and Mario Sports Superstars, whenever Boo gets an Eagle, Albatross, or Hole-in-One, the animation shows multiple Boos who mix it in to form a Big Boo.

Captain Toad: Treasure Tracker[edit]

Big Boos reappear in Captain Toad: Treasure Tracker and its Nintendo Switch and Nintendo 3DS ports with only a few tweaks from Super Mario 3D World. While they act the same by following a Toad when they are not being watched, they are far less a threat due to the headlamp Captain Toad and Toadette have, which can destroy them. Additionally, using a Double Cherry to shine two headlamps on a Big Boo will defeat it much faster, within one second. To compensate for this, Big Boos generally appear in groups of two or more.

Mario & Luigi series[edit]

Mario & Luigi: Superstar Saga + Bowser's Minions[edit]

Sprite of a Big Boo from Mario & Luigi: Superstar Saga + Bowser's Minions. As Big as he is, his sprite sheet is far bigger proportionally.
Mario & Luigi: Superstar Saga + Bowser's Minions sprite

Big Boos appear in Mario & Luigi: Superstar Saga + Bowser's Minions, where they are enemies and recruitable allies found in Minion Quest: The Search for Bowser. They are flying troopers, and attack by running into enemies. Their Special Skill, Piercing Projectile, allows them to spit a blue beam at an enemy. Big Boos are slow, but have high HP and power. Their model bears a resemblance to King Boo's appearance from Mario & Luigi: Paper Jam.

Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey[edit]

Big Boos reappear in Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey, where they are enemies and recruitable allies found in Bowser Jr.'s Journey. However, the player can only befriend a maximum of two, meaning that the player would have to get rid of one of them after completing a level that involves them as enemy troops.

Mario Tennis Aces[edit]

A Big Boo appears in Mario Tennis Aces as the referee in Mirage Mansion.

WarioWare: Move It![edit]

Big Boo makes its first WarioWare appearance in Level 3 of the Mario Pinball Land microgame in WarioWare: Move It! It must be defeated to win the microgame.

Unused appearances[edit]

Super Mario Galaxy 2[edit]

The Atomic Boo from Super Mario Galaxy is an unused leftover with its model deleted from the game data of Super Mario Galaxy 2. However, there is a variant known as Mega Boos.

Profiles and statistics[edit]

Super Mario World[edit]

  • Super Mario World instruction booklet: You may remember the Boo Buddies from Super Mario Bros. 3. This time there's a whole horde of them! And amongst them there's a huge spook called The Big Boo. But don't worry, if you look at them, they act shy and turn away. Cute, aren't they? But watch it ... they're dangerous![10]

Perfect Ban Mario Character Daijiten[edit]

アトミックテレサ (JP) / Big Boo (EN)
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Original text (Japanese) Translation
出身しゆつしん / 種族しゅぞく ゴースト族 Place of origin/tribe Ghost clan
性格せいかく 気が小さい Disposition Faint-hearted
登場とうじょうゲーム ワールド Game appearances World


Top class size Boo

He is an obake that is a combination of many Boos (P116) and is one or two of the largest Mario characters. His personality is shy like Boo, so if your faces meet, he will stop and hide his face.

Super Mario Pia[edit]

  • Guidebook:
    • Japanese:
      登場作品 S64,SMS
      (Romanization: Bosu Teresa
      Bosu to shite tōjō suru kyodai Teresa. "Sūpā Mario Sanshain" de wa ōkina bero o dashite iru.
      Tōjō sakuhin S64, SMS
      (Translation: Boss Boo
      A giant Boo who appears as a boss. In
      Super Mario Sunshine he has a big tongue.
      Appeared in works S64, SMS

Yoshi's Island series[edit]

Super Mario World 2: Yoshi's Island[edit]

  • Player's Guide: Just like a monster in the movies, Big Boos like to sneak up from behind when Yoshi's not looking.[12]

Yoshi's New Island[edit]

  • Shogakukan guide: 通常の何倍もの大きさのテレサ。テレサと同じように、ヨッシーと向き合うと動かなくなり、背を向けると近づいてくる。背を向け、反射でタマゴをぶつけて倒そう。[13](A Boo many times larger than a normal one. Like Boo, it will stop moving when facing Yoshi, and will come closer when you turn your back to it. Turn your back on it, and use your reflexes to hit it with an egg to knock it down.)

Paper Mario series[edit]

Paper Mario: The Thousand-Year Door[edit]

Paper Mario: The Thousand-Year Door enemy
Atomic Boo
Atomic Boo Max HP 40 Attack 4 Defense 0
Location(s) Creepy Steeple Role Boss Level 52
Sleep? 40% Dizzy? 40% Confuse? 40%
Tiny? 0% Stop? 40% Soft? 80%
Burn? 100% Freeze? 30% Fright? 0%
Gale Force? 10% KO? 5% Moves Heavy Drop (4), Hide (N/A), Summon (4, Stop, Piercing), Spook (4 to the character in front, 3 to the character in back, Confusion, Piercing), Boo Swarm (3, 2, 1)
Exp. points 0 Coins 1 Items Lucky Start
Tattle Log #:
Log A massive creature made up of countless Boos. It attacks by breaking apart and sending out hundreds of Boos.
Tattle That's an Atomic Boo. It's a giant Boo made up of a ton of smaller Boos. Max HP is 40, Attack is 4, and Defense is 0. This thing will try to smoosh us. It can also split up and send hundreds of Boos at us. And, when we attack, we might get so scared that we get confused or can't move. I sure wouldn't want to see this thing standing behind me in the middle of the night… Creeeeeepy…

Super Paper Mario[edit]

Super Paper Mario enemy
Atomic Boo
Sprite of an Atomic Boo from Super Paper Mario. Max HP 10 Role Common Location(s) Merlee's Basement (2-4)
Attack 2 Card type Common
Defense 0 Items Ghost Shroom Card location(s) Card Shop; Catch Card/SP
Score 800
Card description This gigantic Boo still hides when you look at it. Some say it's a gathering of many smaller Boos...
  List of Catch Cards  
  94      95      96  
Tattle That's an Atomic Boo. That is one enormous Boo... Max HP is 10. Attack is 2. It will follow you until you turn around, then it just disappears... It has a lot of HP, so you may want to use an item when your back is turned... Some say this Boo is a huge, massive ball of many smaller Boos...

Paper Mario: Sticker Star[edit]

Paper Mario: Sticker Star enemy
Big Boo
Big Boo PMSS.png Max HP 100 Role Boss Location(s) The Enigmansion
Attack 10 Stickers N/A
Defense 0 Moves Crumple (2x3 + 4)

Super Princess Peach[edit]

Glossary profile
  • 47: A giant Boo. Still as shy as ever.

Mario & Luigi series[edit]

Mario & Luigi: Superstar Saga + Bowser's Minions[edit]

  • Minion Quest: The Search for Bowser profile: A big ol' Boo. It's slow, but it flies and has incredible HP and POW.

Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey[edit]

  • Bowser Jr.'s Journey profile: An incredibly large Boo. What it lacks in speed it more than makes up for in stamina and power.


For this subject's image gallery, see Gallery:Big Boo.

Additional names[edit]

Internal names[edit]

Game File Name Meaning

Super Mario Galaxy ObjectData/TeresaChief.arc TeresaChief Transliteration of below
Super Mario Galaxy StageData/ObjNameTable.arc/ObjNameTable.tbl テレサチーフ (Teresa Chīfu) Boo Chief

Names in other languages[edit]

Language Name Meaning
Japanese アトミック・テレサ[14] / アトミックテレサ (mostly Super Mario World to Super Paper Mario)
Atomikku Teresa
巨大テレサ[14] (Super Mario World; treated as a description, shared with Mega Boo)
Kyodai Teresa
ビッグテレサ[15][16] (Super Mario RPG / Mario Pinball Land)
Biggu Teresa
おやかたテレサ[17] (Super Mario 64, Mario Party 2, and Mario Party 4)
Oyakata Teresa
ボステレサ[18] (Super Mario 64 / Mario Pinball Land)
Bosu Teresa
大きなテレサ (Dance Dance Revolution: Mario Mix)
Ōkina Teresa
テレサ(だい[19] (Yoshi's Island DS)
Teresa (Dai)
でかテレサ[20][21][22][23][24][13] (mostly New Super Mario Bros. Wii to current)
Deka Teresa
ジャンボテレサ[25] (Luigi's Mansion: Dark Moon)
Janbo Teresa
Atomic Boo, also romanized as "Atomic Telesa"

Giant Boo

Big Boo

Boss Boo

Boss Boo; same as the Super Mario Sunshine King Boo

Large Boo

Boo (Big)

Big Boo

Jumbo Boo; same as Boolossus

Chinese (simplified) 强力嘘嘘鬼[26] (Super Mario World: Super Mario Advance 2)
Qiánglì Xūxūguǐ
巨型嘘嘘鬼[27] (Super Mario 3D Land / Paper Mario: Sticker Star)
Jùxíng Xūxūguǐ
Powerful Boo

Giant Boo

Chinese (traditional) 大害羞幽靈
Dà Hàixiūyōulíng
Big Boo

Dutch Reuze-Boo
Giant Boo
French Maxi-Boo
Boo Atomique (Paper Mario: The Thousand-Year Door / Super Princess Peach / Super Paper Mario)
Gros Boo (Super Mario World / Super Mario 64 DS)
Big Boo[28][29]
Atomic Boo
Big Boo
German Riesen-Buu-Huu (Super Mario World)
Big Buu
Atom-Buu (Paper Mario: The Thousand-Year Door / Super Paper Mario)
Maxi-Buu (newer games)
Giant Boo
Big Boo
Atom Boo
Big Boo
Italian Grande Boo (used for the bosses)
Boo gigante (for the enemies)
Mega Boo (Super Mario Galaxy 2)
Il Re Boo (Super Mario World boss)
Big Boo
Giant Boo
Mega Boo
King Boo ("King" is not used as a royalty title, similar to "emperor penguin")
Korean 부끄짱 (Super Mario 64 DS)
Bukkeu Jjang
그랜드부끄 (Luigi's Mansion: Dark Moon)
Graendeu Bukkeu
아토믹부끄 (Super Paper Mario)
Atomik Bukkeu
Sometimes "짱" means "boss"; "Boo Boss"

Grand Boo; same as Boolossus

Atomic Boo

Portuguese Grande Bu
Big Boo
Spanish (NOA) Gran Boo
Gran Bú (2010-2017)
Big Boo
Spanish (NOE) Gran Boo
Boo Atómico (Paper Mario: The Thousand-Year Door / Super Paper Mario)
Big Boo
Atomic Boo


  1. ^ M. Arakawa. Nintendo Mario Mania Player's Guide. Page 51.
  2. ^ M. Arakawa. Nintendo Super NES Player's Guide. Page 15.
  3. ^ M. Arakawa. Nintendo Mario Mania Player's Guide. Pages 72-73.
  4. ^ M. Arakawa. Nintendo Super NES Player's Guide. Page 12.
  5. ^ TCRF. Prerelease:Super Mario World (SNES)/Background Graphics and Tilemaps#Enemy Cast List. The Cutting Room Floor. Retrieved August 6, 2020.
  6. ^ M. Arakawa. Super Mario 64 Player's Guide. Page 48.
  7. ^ Loe, Casey. Super Mario Sunshine Perfect Guide. Page 79.
  8. ^ Super Mario RPG: Legend of the Seven Stars English instruction booklet, page 41.
  9. ^ Alpharad (Mach 5, 2016). "Shower Scene" | Paper Mario: TTYD – Stream Highlights #5. YouTube. Retrieved August 1, 2017; originally retrieved March 7, 2016 on the Big Boo (Paper Mario series) page.
  10. ^ Super Mario World instruction booklet, pg. 24
  11. ^ Shogakukan. 1994.「パーフェクト版 マリオキャラクター大事典」 (Perfect Ban Mario Character Daijiten). Page 38.
  12. ^ Miller, Kent, and Terry Munson. Super Mario World 2: Yoshi's Island Player's Guide. Page 126Media:SMW2 Guide 126.jpg.
  13. ^ a b 「ヨッシー New アイランド 任天堂公式ガイドブック」 (Yoshi's New Island Nintendo Kōshiki Guidebook). Page 21Media:Yoshi New Island Shogakukan P21.jpg.
  14. ^ a b Super Mario World Japanese instruction booklet, characters section
  15. ^ Super Mario RPG Japanese instruction booklet, page 41.
  16. ^ Super Mario Ball Shogakukan book
  17. ^ Shogakukan. 2015. Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook, Super Mario 64 section, page 85.
  18. ^
  19. ^ 「ヨッシーアイランドDS任天堂公式ガイドブック」 (Yoshi's Island DS Nintendo Kōshiki Guidebook), page 22. 「テレサ(だいしょう)」
  20. ^ Shogakukan. 2015. Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook, New Super Mario Bros. Wii section, page 145.
  21. ^ Shogakukan. 2015. Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook, Super Mario 3D Land section, page 180.
  22. ^ Shogakukan. 2015. Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook, New Super Mario Bros. 2 section, page 195.
  23. ^ Shogakukan. 2015. Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook, New Super Mario Bros. U section, page 210.
  24. ^ Shogakukan. 2015. Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook, Super Mario 3D World section, page 226.
  25. ^ しゅーや (June 8, 2013). 【実況】ルイージマンション2をツッコミ実況プレイpart5-4. YouTube. Retrieved January 10, 2018.
  26. ^ 无敌阿尔宙斯 (August 28, 2013). 神游 超级马力欧世界 敌人官译. Baidu Tieba. Retrieved February 2, 2017.
  27. ^
  28. ^ French Hotel Mario instruction booklet, page 9.
  29. ^ Yoshi Safari instruction booklet, french section page 20.