Editing Big Boo

{{redirect|Giant Boo|the lazy variant from [[Super Mario Sunshine]]|[[Sleepy Boo]]}}
{{about|large Boos in general|[[Boo]]s from [[Super Mario RPG: Legend of the Seven Stars]], known as "The Big Boo"|[[History of Boos#Super Mario RPG: Legend of the Seven Stars|History of Boos § Super Mario RPG: Legend of the Seven Stars]]|the Big Boo character known as "Boss Teresa" in Japanese debuting in [[Super Mario 64]]|[[Big Boo (character)]]}}
{{species infobox
|image=[[File:Big Boo SM3DW Prima.jpg|200px]]<br>Artwork from ''[[Super Mario 3D World]]''
|first_appearance=''[[Super Mario World]]'' ([[List of games by date#1990|1990]])
|latest_appearance=''[[Luigi's Mansion 2 HD]]'' ([[List of games by date#2024|2024]])
|variant_of=[[Boo]]
|variants=[[Balloon Boo]]<br>[[Big Frame Boo]]<br>[[Boohemoth]]<br>[[Gold Big Boo]]<br>[[Mad Big Boo]]<br>[[Mega Boo]]<br>[[Sleepy Boo]]
|notable=[[Big Boo (character)]]<br>[[Bigger Boo]]<br>[[Boolossus]]<br>[[King Boo]] (''[[Super Mario 64 DS]]''-onward)<br>[[Spooky Speedster]]
|notable-col=1
}}
{{quote|I may not be [[King Boo|the king]], but I sure am BIG. Big enough to crush [[Luigi|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.

==History==
===''Super Mario'' series===
====''Super Mario World''====
[[File:BigBoo SMW.png|frame|left|The Big Boo]]
[[File:Donut Secret House SMW.png|thumb|[[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 and also named '''Big Blue Boo''' in various [[Nintendo Power|Player's Guides]]<ref>{{cite|publisher=Nintendo of America|title=''Mario Mania'' Player's Guide|date=August 1991|page=51|language=en-us}}</ref><ref>{{cite|title=Nintendo ''Super NES'' Player's Guide|page=15|date=1992|publisher=Nintendo of America|language=en-us}}</ref> to differentiate from the Big Boo boss<ref>{{cite|publisher=Nintendo of America|title=''Mario Mania'' Player's Guide|date=August 1991|page=72-73}}</ref><ref>{{cite|title=Nintendo ''Super NES'' Player's Guide|page=12|date=1992|publisher=Nintendo of America|language=en-us}}</ref> first appear in ''[[Super Mario World]]''. In the game, Big Boos inhabit the various [[Ghost House]]s 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 [[trampoline|Jumping Board]] to [[jump]] over them. However, if Mario or Luigi can get a [[dash|running]] start, he can usually [[Spin Jump|spin-jump]] over a Big Boo. Additionally, if there is room, the brothers can use a [[Cape Feather|Cape]] to [[fly]] over a Big Boo or perform a sliding attack during descent to defeat the Big Boo.

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 Block]]s 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 [[Reznor]]s, 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 {{wp|Bo Jackson}}.<ref>{{cite|author=TCRF contributors|title=[[tcrf:Prerelease:Super Mario World (SNES)/Background Graphics and Tilemaps#Enemy Cast List|Prerelease:Super Mario World (SNES)/Background Graphics and Tilemaps#Enemy Cast List]]|publisher=The Cutting Room Floor|accessdate=August 6, 2020}}</ref>

====''Super Mario 64'' / ''Super Mario 64 DS''====
{{see also|Big Boo (character)}}
In ''[[Super Mario 64]]'', a Big Boo appears in [[Peach's Castle]], leading Mario to the [[courtyard (Peach's Castle)|courtyard]]. In the courtyard itself, it can be found in one of the corners, appearing about twice as large as the other Boos. If Mario defeats it, it drops a birdcage (also misidentified as a "carousel"<ref>{{cite|title=''Super Mario 64'' Player's Guide|author=Pelland, Scott and Dan Owsen|page=48|date=1996|publisher=Nintendo of America|language=en-us}}</ref>) leading to [[Big Boo's Haunt]]. [[Big Boo (character)|A much larger Big Boo character]] appears in the course itself as the owner of the mansion and leader of the Boos. In ''[[Super Mario 64 DS]]'', [[King Boo]] is also added and referred to as "Big Boo" as well.

====''Super Mario Sunshine''====
Regular Big Boos do not directly appear in ''[[Super Mario Sunshine]]''; however, an obstructive variant known as [[Sleepy Boo]]s appear, and the Golden Boo in [[The Hotel Lobby's Secret|Episode 2]] of [[Sirena Beach]] is also described as a Giant Boo statue.<ref>{{cite|author=Loe, Casey|title=''Super Mario Sunshine'' Perfect Guide|date=August 12, 2002|isbn=1-931886-09-1|publisher=Versus Books|language=en-us|page=79}}</ref> The Big Boo from ''Super Mario 64'' reappears with a new design, being called King Boo.

====''Super Mario Advance 4: Super Mario Bros. 3''====
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 Block]]s instead of Grab Blocks, the method of defeating the Big Boo remains the same as in ''Super Mario World''. 

The [[List of Super Mario Advance 4: Super Mario Bros. 3 pre-release and unused content|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''====
[[File:Boo Box.png|thumb|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 "[[Big Goomba|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''====
[[File:Big Boo NSMBW Screenshot.png|thumb|left|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 House]]s, and are usually seen with many smaller [[Boo]]s. 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.
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====''Super Mario Galaxy 2''====
[[File:Boos and Big Boo SMG2.png|thumb|200px|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 [[list of Super Mario Galaxy 2 pre-release and unused content|unused leftover]] with its model deleted from the game data.
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====''Super Mario 3D Land''====
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 House]]s. 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''====
[[File:NSMB2 Gold Big Boo.png|thumb|left|A Gold Big Boo leaving a trail of coins.]]
Big Boos reappear in the [[Ghost House]]s of ''[[New Super Mario Bros. 2]]''. They can be turned into [[Gold Big Boo]]s by passing through a [[Gold Ring]]. While in their golden form, they cover their faces and leave a trail of [[coin]]s 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]].
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====''New Super Mario Bros. U'' / ''New Super Luigi U'' / ''New Super Mario Bros. U Deluxe''====
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 House]]s. 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''====
[[File:Shiftier Boo Mansion.jpg|thumb|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 House]]s watching the player, but these Big Boos do not do anything special. Big Boos can now be defeated by [[Light Box]]es, leaving coins.

====''Super Mario Maker'' / ''Super Mario Maker for Nintendo 3DS''====
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''====
Big Boos reappear in ''[[Super Mario Maker 2]]'', retaining their behavior in its predecessor; this time, they can now also be attached to parachutes.
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===''Super Mario World'' television series===
[[File:CartoonBooTwo.png|thumb|left|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 (television series)|''Super Mario World'']] animated series. In the episode "[[Ghosts 'R' Us]]", [[Yoshi]], while exploring [[Wizenheimer]]'s [[Ghost House|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 [[Bowser's Castle|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 Pipe|Warp Tube]], which leads to the basement of Neon Castle.
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===''Super Mario Adventures''===
[[File:SMABigBoo.gif|thumb|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 [[Dr. 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 Peach|Princess Toadstool]].

===''Yoshi's Safari''===
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 [[Boo Buddies|Circling Boo Buddies]]. Mario must shoot the one with his tongue out to win.

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

===''Yoshi's Island'' series===
In ''[[Super Mario World 2: Yoshi's Island]]'', they appear in many [[Tower]]s and [[Castle]]s. 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 [[Star (Yoshi's Island series)|Star]]s 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''===
[[File:Terrorize.png|thumb|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.<ref>{{cite|language=en-us|title=''Super Mario RPG: Legend of the Seven Stars'' instruction booklet|page=41|publisher=Nintendo of America|author=Nintendo|date=1996}}</ref> While there is an enemy called "The Big Boo", it is in fact a misnamed regular Boo.

===''Luigi's Mansion'' series===
====''Luigi's Mansion''====
Big Boos do not directly appear in ''[[Luigi's Mansion]]'' and [[Luigi's Mansion (Nintendo 3DS)|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''====
[[File:LM2BigBoo.png|thumb|left|The Big Boo in ''Luigi's Mansion: Dark Moon'']]
In ''[[Luigi's Mansion: Dark Moon]]'', a [[List of Boos in Luigi's Mansion: Dark Moon#Big Boo|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''===
[[File:G&WG4 Luigi Boxing Big Boo.png|thumb|Screenshot from ''Game & Watch Gallery 4'']]
Big Boo is an opponent in the Modern version of ''[[Boxing]]'' in ''[[Game & Watch Gallery 4]]''. He is [[Luigi]]'s second opponent. However, instead of boxing gloves, Big Boo uses smaller Boos to pummel his opponent. Additionally, if the player selects the game yet waits several seconds, a humorous animation will play. Specifically, several [[Waluigi]]s 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.

===''Mario Party-e''===
A Big Boo is an obstacle in the [[Bolt from Boo]] minigame in ''[[Mario Party-e]]''. Two players must outrun the Big Boo, and if it catches Mario, the game is over.

===''Paper Mario'' series===
====''Paper Mario: The Thousand-Year Door''====
[[File: PMTTYDNS Atomic Boo.jpg|thumb|left|The Atomic Boo in the Nintendo Switch remake]]
Atomic Boos make their ''[[Paper Mario (series)|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 about 200 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 Mushroom]]). 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 Boo|Dark]] version of Atomic Boo is [[List of Paper Mario: The Thousand-Year Door pre-release and unused content|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.<ref>{{cite|author=Alpharad|date=March 5, 2016|timestamp=21:36|url=youtu.be/xkQxt5tibM8?t=1296|title="Shower Scene" {{!}} Paper Mario: TTYD – Stream Highlights #5|publisher=YouTube|accessdate=May 11, 2024}}</ref>

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.

As a new addition to the [[Nintendo Switch]] [[Paper Mario: The Thousand-Year Door (Nintendo Switch)| remake]], the Atomic Boo now has its own battle theme, and it uses some of [[King Boo]]'s voice clips.

====''Super Paper Mario''====
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.
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====''Paper Mario: Sticker Star''====
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 (Paper Mario: Sticker Star)|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 [[Sticker#Things|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.
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===''Yoshi Topsy-Turvy''===
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''===
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 Boo]]s causes the Big Boo to recede.

===''Super Princess Peach''===
[[File:SPPBigBoo.png|thumb|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]] [[Shriek Mansion 3-3|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 Boo]]s, they stay still when Peach turns away from one, and chases after her when she looks at it.
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===''Mario Golf: World Tour'' / ''Mario Sports Superstars''===
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''===
Big Boos reappear in ''[[Captain Toad: Treasure Tracker]]'' and its Nintendo Switch and Nintendo 3DS [[Captain Toad: Treasure Tracker (Nintendo Switch / 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===
====''Mario & Luigi: Superstar Saga + Bowser's Minions''====
[[File:MLSSBMBigBoo.png|thumb|''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 (Mario & Luigi series)|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''====
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''===
A Big Boo appears in ''[[Mario Tennis Aces]]'' as the referee in [[Mirage Mansion]].

===''WarioWare: Move It!''===
Big Boo makes its first ''[[WarioWare (series)|WarioWare]]'' appearance in Level 3 of the [[Mario Pinball Land (microgame)|Mario Pinball Land]] [[microgame]] in ''[[WarioWare: Move It!]]'' It must be defeated to win the microgame.

==Profiles and statistics==
===''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!''<ref>{{cite|date=1991|language=en-us|author=Nintendo|publisher=Nintendo of America|title=''Super Mario World'' instruction booklet|page=24}}</ref>

===''[[Perfect Ban Mario Character Daijiten]]''===
{{PEGMCE profile
|name=アトミックテレサ (JP) / Big Boo (EN)
|shuzoku=ゴースト族
|seikaku=気が小さい
|tojo_gemu=ワールド
|desc='''<big>大きさトップクラスのテレサ</big><br>
たくさんのテレサ（P116）が合体したオバケで、マリオキャラの中でも1、2を争う大きさ。性格はテレサと同じく照れ屋なので、顔が合えば顔を隠して止まってしまう。<ref name=Daijiten>{{cite|publisher=Shogakukan|date=1994|language=ja|title=「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=[https://i.imgur.com/dv0Bi9S.jpeg 38]}}</ref>
|tribe=Ghost clan
|disposition=Faint-hearted
|game_appearances=World
|eng_desc='''''<big>Top class size Boo</big><br>
''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.''
}}

===''Yoshi's Island'' series===
====''Super Mario World 2: Yoshi's Island''====
*'''[[Player's Guide]]:''' ''Just like a monster in the movies, Big Boos like to sneak up from behind when Yoshi's not looking.''<ref>{{cite|author=Miller, Kent and Terry Munson|title=''Super Mario World 2: Yoshi's Island'' Player's Guide|page={{file link|SMW2 Guide 126.jpg|126}}|date=1995|publisher=Nintendo of America|language=en-us}}</ref>

====''Yoshi's New Island''====
*'''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。<ref name=YNI/>(''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===
====''Paper Mario: The Thousand-Year Door''====
{{:Paper Mario: The Thousand-Year Door bestiary|transcludesection=Atomic Boo|align=horizontal|image=[[File:Atomic_Boo.png]]}}

====''Paper Mario: The Thousand-Year Door'' (Nintendo Switch)''====
{{:Paper Mario: The Thousand-Year Door (Nintendo Switch) bestiary|transcludesection=Atomic Boo|align=horizontal}}

====''Super Paper Mario''====
{{:Super Paper Mario bestiary|transcludesection=Atomic Boo|align=horizontal}}

====''Paper Mario: Sticker Star''====
{{:Paper Mario: Sticker Star bestiary|transcludesection=Big Boo|align=horizontal}}

===''Super Princess Peach''===
;[[Super Princess Peach#Enemies|Glossary]] profile
*'''47''': ''A giant Boo. Still as shy as ever.''

===''Mario & Luigi'' series===
====''Mario & Luigi: Superstar Saga + Bowser's Minions''====
*'''''Minion Quest: The Search for Bowser'' profile:''' ''A big ol' Boo. It's slow, but it flies and has incredible HP and POW.''<br>

====''Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey''====
*'''''Bowser Jr.'s Journey'' profile:''' ''An incredibly large Boo. What it lacks in speed it more than makes up for in stamina and power.''

==Gallery==
{{main-gallery}}
<gallery>
TheBigBooHiddingL.gif|A Big Boo being bashful from ''[[Super Mario World]]''
HM Big Boo.png|''[[Hotel Mario]]''
BigBooSM3DL.png|''[[Super Mario 3D Land]]''
PDSMBE-BigBoo-TeamImage.png|''[[Puzzle & Dragons: Super Mario Bros. Edition]]''
MarioRabbids Halloweentheme.jpg|''[[Mario + Rabbids Kingdom Battle]]''
</gallery>

==Additional names==
===Internal names===
{{internal names
|game1=''[[Super Mario Galaxy]]''
|file1=<tt>ObjectData/TeresaChief.arc</tt>
|name1=TeresaChief
|meaning1=Transliteration of below
|game2=''Super Mario Galaxy''
|file2=<tt>StageData/ObjNameTable.arc/ObjNameTable.tbl</tt>
|name2=テレサチーフ (''Teresa Chīfu'')
|meaning2=Boo Chief
}}

===Names in other languages===
{{foreign names
|Jap=アトミック・テレサ<ref name="SMW Manual JP>{{cite|url=www.nintendo.co.jp/clvs/manuals/ja/pdf/CLV-P-VAAAJ.pdf|format=PDF|publisher=Nintendo|language=Japanese|date=1990|author=Nintendo|title=スーパーマリオワールド (''Sūpā Mario Wārudo'') instruction booklet, characters section|page=32}}</ref> / アトミックテレサ
|JapR=Atomikku Teresa
|JapM=Atomic Boo, also romanized as "Atomic Telesa" <small>(mostly ''Super Mario World'' to ''Super Paper Mario'')</small>
|Jap2=巨大テレサ<ref name="SMW Manual JP" />
|Jap2R=Kyodai Teresa
|Jap2M=Giant Boo <small>(''Super Mario World''; treated as a description, shared with [[Mega Boo]])</small>
|Jap3=ビッグテレサ<ref>{{cite|title=''Super Mario RPG'' instruction booklet|page=41|date=1996|author=Nintendo|language=Japanese|publisher=Nintendo}}</ref><ref>{{cite|url=i.imgur.com/zigJ6o0.jpg|title=''Super Mario Ball'' Shogakukan book}}{{page needed}}</ref>
|Jap3R=Biggu Teresa
|Jap3M=Big Boo <small>(''Super Mario RPG'')</small>
|Jap4=大きなテレサ
|Jap4R=Ōkina Teresa
|Jap4M=Large Boo <small>(''Dance Dance Revolution: Mario Mix'')</small>
|Jap5=テレサ（{{ruby|大|だい}}）<ref>{{cite|title=「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={{file link|YIDS Shogakukan P22.jpg|22}}|quote=「テレサ（{{ruby|大|だい}}・{{ruby|小|しょう}}）」|date=2006|language=Japanese|publisher=Shogakukan}}</ref>
|Jap5R=Teresa (Dai)
|Jap5M=Boo (Big) <small>(''Yoshi's Island DS'')</small>
|Jap6=でかテレサ<ref>{{cite|author=Sakai, Kazuya (Ambit) et al.|language=ja|publisher=[[Shogakukan]]|date=October 19, 2015|title=''Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook'', ''New Super Mario Bros. Wii'' section|page=145|isbn=978-4-09-106569-8}}</ref><ref>{{cite|author=Sakai, Kazuya (Ambit) et al.|language=ja|publisher=[[Shogakukan]]|date=October 19, 2015|title=''Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook'', ''Super Mario 3D Land'' section|page=180|isbn=978-4-09-106569-8}}</ref><ref>{{cite|author=Sakai, Kazuya (Ambit) et al.|language=ja|publisher=[[Shogakukan]]|date=October 19, 2015|title=''Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook'', ''New Super Mario Bros. 2'' section|page=195|isbn=978-4-09-106569-8}}</ref><ref>{{cite|author=Sakai, Kazuya (Ambit) et al.|language=ja|publisher=[[Shogakukan]]|date=October 19, 2015|title=''Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook'', ''New Super Mario Bros. U'' section|page=210|isbn=978-4-09-106569-8}}</ref><ref>{{cite|author=Sakai, Kazuya (Ambit) et al.|language=ja|publisher=[[Shogakukan]]|date=October 19, 2015|title=''Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook'', ''Super Mario 3D World'' section|page=226|isbn=978-4-09-106569-8}}</ref><ref name=YNI>{{cite|title=「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={{file link|Yoshi New Island Shogakukan P21.jpg|21}}|date=2013|language=Japanese|publisher=Shogakukan}}</ref>
|Jap6R=Deka Teresa
|Jap6M=Big Boo <small>(mostly ''New Super Mario Bros. Wii'' to current)</small>
|Jap7=ジャンボテレサ<ref>{{cite|author=しゅーや|date=June 8, 2013|url=youtu.be/QcF1azMOqyk?t=150|timestamp=2:30|language=ja|title=【実況】ルイージマンション2をツッコミ実況プレイpart5-4|publisher=YouTube|accessdate=May 11, 2024}}</ref>
|Jap7R=Janbo Teresa
|Jap7M=Jumbo Boo; same as [[Boolossus]] <small>(''Luigi's Mansion: Dark Moon'')</small>
|ChiS=强力嘘嘘鬼<ref>{{cite|title=无敌阿尔宙斯|date=August 28, 2013|url=tieba.baidu.com/p/2560204606 神游 超级马力欧世界 敌人官译]|language=zh-hans|publisher=Baidu Tieba|accessdate=February 2, 2017}}{{dead link}}</ref>
|ChiSR=Qiánglì Xūxūguǐ
|ChiSM=Powerful Boo <small>(''Super Mario World: Super Mario Advance 2'')</small>
|ChiS2=巨型嘘嘘鬼<ref>{{cite|url=www.ique.com/3ds/arej/screenshot/index.html|title=超级马力欧 3D乐园：游戏画面|publisher=iQue|author=iQue|language=zh-hans}}</ref>
|ChiS2R=Jùxíng Xūxūguǐ
|ChiS2M=Giant Boo <small>(''Super Mario 3D Land'' / ''Paper Mario: Sticker Star'')</small>
|ChiT=大害羞幽靈
|ChiTR=Dà Hàixiūyōulíng
|ChiTM=Big Boo
|ChiT2=龐大害羞幽靈<ref>{{cite|author=資深電玩迷 分享回憶錄|language=zh-hant|date=October 23, 2023|url=youtu.be/Isw9nLQbcGI?t=125|timestamp=2:05|title= 路易吉洋樓2 EP36 驚悚宮殿 E4奇襲之策 |publisher=YouTube|accessdate=May 28, 2024}}</ref>
|ChiT2R=Pángdà Hàxiūyōulíng
|ChiT2M=Enormous Boo; same as [[Boolossus]] <small>(''Luigi's Mansion: Dark Moon'')</small>
|Dut=Reuze-Boo
|DutM=Giant Boo
|Fre=Maxi-Boo
|Fre2=Boo Atomique
|Fre2M=Atomic Boo <small><small>(''Paper Mario: The Thousand-Year Door'' / ''Super Princess Peach'' / ''Super Paper Mario'')</small></small>
|Fre3=Gros Boo
|Fre3M=Big Boo <small>(''Super Mario World'')</small>
|Fre4=Big Boo<ref>{{cite|url=www.oldiesrising.com/noticespdfV2/Philips%20CDi/Hotel%20Mario.pdf|format=PDF|title=French ''Hotel Mario'' instruction booklet|page=9|language=fr|date=1994}}</ref><ref>{{cite|url=drive.google.com/file/d/10U71A5B_bWOUf55wXE9g9D6FbP878wdx/view|title=''Yoshi Safari'' instruction booklet, French section|page=20|language=fr}}</ref>
|Ger=Riesen-Buu-Huu
|GerM=Giant Boo <small>(''Super Mario World'')</small>
|Ger2=Big Buu
|Ger2M=Big Boo
|Ger3=Atom-Buu
|Ger3M=Atom Boo <small>(''Paper Mario: The Thousand-Year Door'' / ''Super Paper Mario'')</small>
|Ger4=Maxi-Buu
|Ger4M=Big Boo <small>(newer games)</small>
|Ita=Big Boo<ref>{{cite|title=''[[Super Mario World]]'' Italian instruction booklet|page=24}}</ref>
|ItaM=Big Boo <small>(''Super Mario World'')</small>
|Ita2=Grande Boo<ref>{{cite|date=November 15, 2018|title=''[[Super Mario Bros. Encyclopedia|Super Mario Bros. Enciclopedia]]''|publisher=Magazzini Salani|language=it|isbn=889367436X|page=54 and 226}}</ref>
|Ita2M=Big Boo, mostly used for the bosses <small>(''Super Mario World'', ''Paper Mario: The Thousand-Year Door'' and its remake, ''Super Princess Peach'', ''Super Paper Mario'', ''Super Mario 3D World'')</small>
|Ita3=Boo gigante
|Ita3M=Giant Boo <small>(''Dancing Stage: Mario Mix'' and from ''Luigi's Mansion 2'' onward)</small>
|Ita4=Gran Boo<ref>{{cite|date=November 15, 2018|title=''Super Mario Bros. Enciclopedia''|publisher=Magazzini Salani|language=it|isbn=889367436X|page=145 and 180}}</ref>
|Ita4M=Great Boo <small>(''New Super Mario Bros. Wii'', ''Super Mario 3D Land'')</small>
|Ita5=Boo Gigante<ref>{{cite|date=November 15, 2018|title=''Super Mario Bros. Enciclopedia''|publisher=Magazzini Salani|language=it|isbn=889367436X|page=194}}</ref>
|Ita5M=Giant Boo <small>(''New Super Mario Bros. 2'')</small>
|Ita6=Mega Boo<ref>{{cite|date=November 15, 2018|title=''Super Mario Bros. Enciclopedia''|publisher=Magazzini Salani|language=it|isbn=889367436X|page=210}}</ref>
|Ita6M=Shared with [[Mega Boo]] in the PRIMA Guide <small>(''New Super Mario Bros. U'')</small>
|Ita7=Grosso Boo<ref>{{cite|title=''[[Super Mario Adventures]]''|page=84}}</ref>
|Ita7M=Big/Large Boo <small>(''Super Mario Adventures'')</small>
|Kor=그랜드부끄
|KorR=Geuraendeu Bukkeu
|KorM=Grand Boo; same as [[Boolossus]] <small>(''Luigi's Mansion: Dark Moon'')</small>
|Kor2=아토믹부끄
|Kor2R=Atomik Bukkeu
|Kor2M=Atomic Boo <small>(''Super Paper Mario'')</small>
|PorA=Big Boo<ref>{{cite|archive=web.archive.org/web/20210719091730/https://datassette.nyc3.cdn.digitaloceanspaces.com/manuais/super_mario_world_br.pdf|deadlink=y|title=''Super Mario World'' Brazilian instruction booklet|page=24}}</ref>
|PorE=Bu Gigante
|PorEM=Giant Boo
|Rus=Огромного бу
|RusR=Ogromnogo bu
|RusM=Huge Boo
|SpaA=Gran Boo<br>Gran Bú
|SpaAM=Big Boo <small>(latter spelling used from 2010-2017)</small>
|SpaE=Gran Boo
|SpaEM=Big Boo
|SpaE2=Boo Atómico
|SpaE2M=Atomic Boo <small>(''Paper Mario: The Thousand-Year Door'' / ''Super Paper Mario'')</small>
}}

==References==
<references/>

{{navboxes|
{{Boos}}
{{SMW}}
{{SMW TV}}
{{Yoshi's Safari}}
{{HM}}
{{YI}}
{{SMB3}}
{{PMTTYD}}
{{YTT}}
{{DDRMM}}
{{SPP}}
{{YIDS}}
{{SPM}}
{{SMG}}
{{NSMBW}}
{{SMG2}}
{{SM3DL}}
{{NSMB2}}
{{PMSS}}
{{NSMBU}}
{{LMDM}}
{{SM3DW}}
{{CTTT}}
{{SMM}}
{{M&LSS}}
{{MTA}}
{{M&LBIS}}
{{SMM2}}
}}
[[Category:Boos]]
[[Category:Mini-bosses]]
[[Category:Bowser Jr.'s Journey allies]]
[[Category:Captain Toad: Treasure Tracker enemies]]
[[Category:Dance Dance Revolution: Mario Mix enemies]]
[[Category:Hotel Mario enemies]]
[[Category:Luigi's Mansion: Dark Moon bosses]]
[[Category:Mario Party-e characters]]
[[Category:Minion Quest: The Search for Bowser allies]]
[[Category:New Super Luigi U enemies]]
[[Category:New Super Mario Bros. 2 enemies]]
[[Category:New Super Mario Bros. U enemies]]
[[Category:New Super Mario Bros. Wii enemies]]
[[Category:Optional bosses]]
[[Category:Paper Mario: The Thousand-Year Door bosses]]
[[Category:Paper Mario: Sticker Star bosses]]
[[Category:Super Mario 3D Land enemies]]
[[Category:Super Mario 3D World enemies]]
[[Category:Super Mario 64 enemies]]
[[Category:Super Mario Advance 4: Super Mario Bros. 3 enemies]]
[[Category:Super Mario Galaxy enemies]]
[[Category:Super Mario Galaxy 2 enemies]]
[[Category:Super Mario Maker enemies]]
[[Category:Super Mario World bosses]]
[[Category:Super Mario World enemies]]
[[Category:Super Mario World (television series)]]
[[Category:Super Mario World 2: Yoshi's Island enemies]]
[[Category:Super Mario RPG: Legend of the Seven Stars species]]
[[Category:Super Paper Mario enemies]]
[[Category:Super Princess Peach enemies]]
[[Category:Yoshi Topsy-Turvy enemies]]
[[Category:Yoshi's Island: Super Mario Advance 3]]
[[Category:Yoshi's Island DS enemies]]
[[Category:Yoshi's Safari bosses]]
[[de:Maxi-Buu]]
[[de:Blauer Maxi-Buu]]
[[it:Boo gigante]]