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King Boo is an enemy and boss from the Mario series, and the main antagonist and final boss of the Luigi's Mansion series. He is the king of all the Boos and ghosts and the archenemy of Luigi. His most prominent ally is the Koopa King Bowser, who has aided King Boo in his various schemes. He is more than capable of devising and enacting villainous plans by himself, including his capture and imprisonment of Mario. Although not the biggest Boo, King Boo has abilities that far surpass that of the average ghost; he wields a number of impressive magical abilities, including the ability to materialize objects. King Boo's magical power is directly proportional to the number of Boos in his vicinity.

Appearance[]

King Boo is usually bigger and larger than the average Boo, but how much depends on the specific game; in some games, he's about the same or only slightly larger, like in the first two Luigi's Mansion games, but in the third, he's noticeably much larger. In the first game that he ever appeared, he had menacing red eyes, a purple ruby crown on top of his head, black eyelashes, sharp fangs, and a blue tongue. His modern look is similar to his original look, but he wears a golden crown that resembles Princess Peach's, less menacing-looking black eyes, and his tongue is now pinkish-red. His fangs are still the same as original. In Super Mario Sunshine, where he is battled in Hotel Delfino's Casino, he is much larger and wider then he was in Luigi's Mansion and has tired eyes, and a huge, long tongue coming out of his mouth.

History[]

King Boo

King Boo.

Luigi's Mansion series[]

In the Luigi's Mansion series, King Boo is the main antagonist. He is portrayed as a pure evil entity in this game.

Luigi's Mansion[]

King Boo orchestrates the events of the game by sending Luigi a notification that he won a mansion in a contest he didn't even enter. Luigi then informs Mario about it and they arrange to meet each other there. However, when Luigi arrives, Mario is nowhere to be found, and after some exploring, it is later revealed that King Boo trapped him in a painting and that he made up the idea of them winning the mansion in a contest to lure them there and trap them both in paintings. He was also the one who created the mansion and is responsible for releasing all the ghosts that are sheltered in it, who were previously captured and put in paintings by E. Gadd. However, Luigi quickly meets Professor Elvin Gadd, who equips him with the Poltergust 3000, a vacuum cleaner that can combat and capture ghosts, so when King Boo and the rest of the Boos encounter Luigi, they notice it and promptly flee. For the rest of the game, King Boo stays in an alter room in the basement where he's keeping the painting that he's trapped Mario in. Over the course of the game, Luigi manages to make his way through the mansion, suck up all the other Boos and finally reach King Boo's room where he confronts him to free Mario. However King Boo resolves to stay and fight him directly.

When the battle commences, King Boo utilizes a Bowser suit and uses it to suck Luigi into the painting where he fights him on the rooftop of the mansion, only in a different dimension. His first main attack has him try to suck Luigi into his mouth and chew on him, dealing 20 damage. King Boo can also jump into the air with the suit and summon bombs that explode. The bombs will have a countdown timer and flash red before their detonation. Luigi must suck up a bomb using his Poltergust 3000 and fire it at the suit's helmet. When that happens, King Boo will be "smoked" out of the suit, rendering him vulnerable to attack. However, King Boo automates his suit's helmet, which starts firing ice balls at Luigi as the green-clad plumber tries to retaliate. After his life bar is cut down to 300, King Boo gains a new attack that involves charging around the arena. This only occurs after King Boo puts his suit on again. King Boo is downed upon taking 500 damage total. Eventually, when his health is depleted, he is sucked into the Poltergust 3000 and sealed in a painting along with all the other captured ghosts.

According to his portrait description ("Not much is known about this mysterious entity."), King Boo is largely enigmatic.

Luigi's Mansion: Dark Moon[]

King Boo also appears in the Nintendo 3DS game Luigi's Mansion: Dark Moon once again as the main antagonist, where he once again traps Mario in a painting, as well as shattering the Dark Moon in Evershade Valley via his crown. Because of this, the ghosts of the valley became hostile. His appearance is more similar to his Luigi's Mansion appearance, except he still has a full row of teeth like his modern appearance instead of his vampire like fangs in Luigi's Mansion, he also speaks with his sped up voice in the modern Mario games.

King Boo is first seen in the game when Luigi makes his way to the Treacherous Mansion. Upon entering the front door, Luigi turns around to check his surroundings for enemy ambushes. King Boo appears behind him, but runs off when Luigi turns his attention to the interior of the mansion itself.

King Boo makes his second appearance when the mission Double Trouble is complete and Luigi and Professor E. Gadd head to their bunker to examine the security image that was taken by the Mushroom Retainers during their investigation. Luigi looks at a giant white spot that is surmounted by a red ruby-decorated crown. Suddenly, the white spot turns to mock the duo (possibly Luigi's hallucination), revealing itself as King Boo himself. King Boo makes his third appearance during the stage Paranormal Chaos, activating the Paranormal Portal with his crown.

King Boo's fourth and final appearance during the game is for his boss battle. His attacks involve him trying to ram the player and summoning spiked balls and slamming the floor with his girth. King Boo can be stunned if the spiked balls are lured onto his head, resulting in his vulnerability. His health bar measures 300 this time. After it goes down to 200, King Boo counterattacks by creating a hallway that must be traversed to avoid getting crushed under his bulk. Once that is over, the fight loops back to the main platform, beginning phase 3. King Boo then repeats his attack pattern from before, with the addition of a new move that involves zapping some platforms, generating slippery ice or movement-slowing sand. Phase 4 begins after his health bar is downed to 100, playing like phase 2, but harder. The fifth and final phase is basically phase 3 again, but with a new move that involves zapping every platform except one with a powerful laser. Once his stamina is drained completely, King Boo is downed.

Luigi's Mansion Arcade[]

King Boo appears as the main antagonist and final boss of Luigi's Mansion Arcade, leading his ghosts in an uprising to get revenge on Luigi and Professor E. Gadd. However, after Luigi has sucked in all of his minions with the Poltergust 5000, King Boo assaults Luigi on the terrace of the Treacherous Mansion. Protected by a magical barrier, he can only be attacked once he lets his guard down. King Boo throws bombs at the player, moves very quickly and clones himself multiple times over the course of the fight. However, only the original has the power-enhancing gem on his crown. Just like in Luigi's Mansion: Dark Moon, he escapes the Poltergust 5000 two times before being defeated for good.

Luigi's Mansion 3[]

King Boo reappears in Luigi's Mansion 3, looking identical to his design in Luigi's Mansion: Dark Moon. Once again, King Boo is the main antagonist, having invited Luigi, Mario, Princess Peach and several Toads to a hotel, only to trap the whole group - barring Luigi - in paintings, and seeks his revenge on Luigi for his previous defeats.

King Boo is fought on the roof of the hotel. The arena's shape is square. During his starting phase, King Boo has the following attacks during his battle:

  • Firing fireballs from his crown.
  • Zapping all but a few parts of the floor with lightning form his crown.
  • Crushing Luigi from above. King Boo leaves a shockwave that can be avoided if Luigi uses his Poltergust G-00's Burst.
  • Slapping his tongue on the roof. Luigi must avoid being on the same horizontal.
  • Rolling his tongue. Luigi must travel under King Boo's tongue to escape. The Poltergust G-00's burst will not work.
  • Producing a spiked bomb in his hands and then tossing it onto the arena. This releases some bombs. The bombs have their timer set to somewhere between 10 and 20 seconds. Luigi must fire a bomb at King Boo's mouth when it is open. When this happens, King Boo is stunned, and his tongue can be sucked up. Luigi cooperate with Gooigi able to slam the King Boo around to deal damage. Luigi have to cooperate with Gooigi and Damage King Boo total 12 hits.(with one Bomb explosion and 3 slams each and every phase.)

After Luigi gives King Boo three slams, King Boo gets angry. King Boo duplicates himself and becomes two, enters his second phase. The clone does not launch shockwaves, and the spiked ball it throws contains nothing. There are now three or two free spots during the lightning attack.

After another three slams, King Boo enters the third and final phase. Even worse, Luigi is on a 4 minute time crunch, as King Boo has turned enlarged the portrait so that it will suck the entire mansion in. He also creates two clones instead of just one that he uses to attack with and has a new move that has multiple bombs rain down as a meteor storm. These bombs detonate within about five seconds of their impact with the ground. Additionally, the lightning attack now leaves only one free spot.

Once Luigi defeats him (another 3 slams), King Boo gets sucked in, and the black hole reverts into another painting, out of whose depths Luigi uses his Dark-Light Device to extricate Mario, Princess Peach, Professor Elvin Gadd, and the three Mushroom Retainers (Toad included), and the game is complete.

Super Mario series[]

Super Mario Sunshine[]

During the events of Super Mario Sunshine, Bowser and his forces, including King Boo, attacked the vacation paradise of Isle Delfino, home of the Piantas. King Boo and his Boo minions occupied Hotel Delfino, the four-star resort located on Sirena Beach. While Bowser Jr., in the guise of Shadow Mario, tarnished the real Mario's good name, King Boo settled into his new house of haunts. The Boo leader and his forces even managed to capture a few Shine Sprites, the source of Isle Delfino's energy. In fact, King Boo personally guarded one of these Shine Sprites.

As his Boo minions roamed the halls of the hotel, King Boo decided to make his lair inside a secret area of the hotel's casino. Ultimately, King Boo's control over the hotel would not last long. Mario, armed with his new accessory F.L.U.D.D., fought past King Boo's forces and discovered the entrance to the ghost leader's hidden lair. To enter the secret area, Mario had to Ground Pound the purple space on the giant roulette in the center of the casino. This transported the heroic plumber to King Boo's arena, where the two engaged in combat. The battle took place on top of yet another giant roulette. During the fight, King Boo would attack Mario by spitting normal Boos to do their master's dirty work. The ghoul would also spit bubbles at the plumber, although Mario could simply pop these to refill F.L.U.D.D's water tank. However, the ghastly leader would also spice up the battle by taking out a large slot machine. When Mario sprayed the slot machine while King Boo was holding the device, the reels would begin to spin. If three question marks lined up, enemies would appear out of nowhere and instantly attack the heroic plumber. If three coins appeared on the reels, Mario would be rewarded with coins (and could thus refill his health meter). Finally, if three fruits lined up on the reels, a heaping amount of fruit would appear on the roulette battlefield. Noticing King Boo's large, drooling tongue hanging out, Mario decided to pick up a red pepper (when available) and tossed the spicy fruit into the massive tongue. This would set the ghost royal's mouth ablaze, immobilizing the large Boo as he attempted to put out the fire. Mario could then toss another fruit directly at King Boo to deliver damage to the ghost. However, if Mario sprayed King Boo instead of hitting him with a fruit, F.L.U.D.D's water would cool the ghost's tongue and the Boo leader would suffer no damage. After repeating the process of red pepper attack followed by a fruit strike three times, Mario defeated the King of the Boos and collected the ghost's personal Shine Sprite. With more energy returning to the island, Mario continued to collect more Shine Sprites, and eventually defeated both Bowser and his son Bowser Jr.

This King Boo was given his name by the American localization team, but the original Japanese version assigns a unique name to this character (ボステレサ, meaning "Boss Boo").

Super Mario 64 DS[]

King Boo appears in the Super Mario 64 remake, Super Mario 64 DS. As the boss who locked Luigi away, he captures a part of Peach's Castle. However, in the English translation of the game, King Boo is incorrectly called Big Boo, even though he is clearly different from the Big Boo of Big Boo's Haunt.

Regardless, King Boo aids Bowser in his conquest of Peach's Castle by capturing Luigi and imprisoning him in Big Boo's Haunt. Specifically, Luigi is imprisoned behind a painting of himself inside the haunted mansion. Mario heads to the Big Boo Battle level to save Luigi. Upon entering the level, he is greeted by King Boo, and from there he must listen for King Boo's cackle and enter the door where it is loudest. Eventually Mario reaches the end and fights King Boo to free Luigi. To defeat King Boo, Mario has to follow King Boo's movements in the arena's mirror and stomp him when he comes close enough. Ultimately, Mario saves his brother from King Boo and together (with Yoshi and Wario once he is saved) they defeat Bowser and save Princess Peach.

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

King Boo makes a small cameo in New Super Luigi U (the expansion pack of New Super Mario Bros. U) and its port New Super Mario Bros. U Deluxe in the Secret Exit of Vanishing Ghost House, where his art from Luigi's Mansion: Dark Moon can be seen in the form of a sign hanging from the side of the building[1].

Mario Kart series[]

Mario Kart: Double Dash!![]

King Boo is an unlockable character in the racing game Mario Kart: Double Dash!!. This is his first appearance in a spin-off, and also his first playable appearance, resulting in further appearances in the Mario Kart series. Despite being a ghost, King Boo is classified as a heavyweight driver due to his large size. His partner is Petey Piranha, and both have the ability to use almost any other character's special item (if they are going to get a special item, it is randomly chosen, based on their race position). They cannot receive the Green Fireball or the Birdo's Egg, however.

King Boo's personal kart is the Boo Pipes, which is a gray version of Petey's Piranha Pipes kart, but with an image of a Boo instead of a Piranha Plant where the item-using partner stands. However, the more important difference between the two is that, while the Piranha Pipes has high speed and low acceleration, the Boo Pipes is vice versa, with low speed and high acceleration. The only other heavy kart like this in the Mario Kart franchise is the Offroader in Mario Kart Wii.

When partnered with Petey Piranha, the camera is slightly zoomed out behind them during gameplay; this pairing is the only one to do so. He also appears to slightly shrink when he becomes the driver. On the second "Thanks for Playing!" screen (after beating the Special Cup with a Gold Trophy while all other cups already have a Gold Trophy), King Boo appears in the background chasing Wario and Waluigi.

Mario Kart DS[]

In Mario Kart DS, King Boo, along with six other bosses from Super Mario 64 DS, re-appears as one of the bosses of the Mission Mode. King Boo is the boss of the fourth level, with the playable character being Peach. Peach attempts to collect 50 Coins on the Lava Arena within the time limit, but after a few seconds King Boo appears, surrounds her, and then attacks her, stealing ten of her Coins and making all uncollected coins disappear, before teleporting to another area of the arena. To take them back, Peach has to drive and bump into King Boo, making him transparent. Then, she can drive through him again, retrieving her Coins and making the other Coins reappear. However, King Boo soon reappears a few moments later to get the Coins again. After collecting all fifty coins, Peach finally defeats King Boo. Additionally, the Bowser and King Boo painting from Luigi's Mansion appears in the Luigi's Mansion race course, although only Bowser can be seen in the painting.

Mario Kart Arcade GP 2[]

King Boo makes a cameo appearance in Mario Kart Arcade GP 2 on the Yoshi Park 2 course in the Horror House. Here, a large picture of him appears near the end of the course where it inhales many ghosts and the racers. As the player drives into his mouth, they are warped back to the beginning of the course.

Mario Kart Wii[]

King Boo returns in Mario Kart Wii as a large-sized driver, and is unlocked by completing the Star Cup in 50cc, which is unlocked by completing the Flower Cup and Mushroom Cup. He is also unlocked by playing 750 races. He features a good handling bonus and a small off-road bonus, which comes in handy for vehicles like the Offroader, Wario Bike, and Phantom. He is used as the Staff Ghost on the SNES Ghost Valley 2 course. In the credits, he appears driving the Jetsetter on the SNES Ghost Valley 2 course.

King Boo is one of very few characters to have his standing animation on the Character Select screen altered from Mario Kart: Double Dash!! In this case, his tongue is not sticking out of his mouth the whole time like before; now, before selecting him, his tongue is still in his mouth. Other characters whose sprites were altered include: Yoshi, who is now looking at the screen; Birdo, whose bow was made larger; Diddy Kong, who is looking in a different direction; Wario, who now has short sleeves; Waluigi, who now performs a slightly different animation when selected; and Donkey Kong, whose mouth is not as wide open and is looking in another direction.

Mario Kart 8 Deluxe[]

King Boo returns as a playable character in Mario Kart 8 Deluxe, the enhanced port of Mario Kart 8 released for Nintendo Switch. He is among the lightest of the 5 heavyweight groups, sharing his stats with Rosalina and Link. He has the lowest top speed and weight of all the heavyweights, all while sharing similar acceleration as other heavy groups. However, his handling is amongst the best of the heavyweights (shared with the metal characters). He also has the strongest mini-turbo boost of the heavyweights. Finally, his traction stat is noticeably strong, being far and away the best in his weight class, and the 3rd best base traction stat in the game. He is also the 200cc Staff Ghost for Twisted Mansion.

Mario Kart Arcade GP DX[]

King Boo appears as a featherweight playable character in Mario Kart Arcade GP DX, sharing his stats with Baby Mario and Baby Peach. He was only playable during a limited-time event campaign held between October 18, 2017, and January 10, 2018, in the Japanese version, though Bana Passport users could unlock King Boo permanently when they collected three in-game stamps, making him usable even after the event's duration.

Mario Kart Tour[]

King Boo reappears as a playable character in Mario Kart Tour pre-release materials, including the beta test, where he was available as a Super Rare (Previous name of high-end) character. However, he is now just a Super tier character. His special Item is the Lucky Seven. Their are also two variants of him being King Boo (Luigi's Mansion), which uses his Luigi's Mansion 3 design, and King Boo (Gold), which is simply a gold version of him. King Boo (Luigi's Mansion) uses the Bob-omb Cannon as his special item and King Boo (Gold) uses the Coin Box. King Boo (Gold) from Mario Kart Tour

Mario Baseball series[]

Mario Superstar Baseball[]

King Boo is a playable character in Mario Superstar Baseball and a member of Wario's baseball team, the Wario Greats. He is a default character, meaning he does not need to be unlocked. He is a power hitter, using his white, crowned, Boo-like baseball bat to hit long outfield drives and even homeruns. King Boo has good chemistry with Boo and Petey Piranha, and he has bad chemistry with Luigi. However, like Boo, his hits are usually very curved, and this causes them to be fouls most of the time.

Mario Super Sluggers[]

King Boo reappears in Mario Super Sluggers and is one of the few characters on Wario's team in both games, along with Boo and Waluigi. He is once again a power hitter, and he also excels in pitching, with both stats being his highest, though his running and fielding are still rather poor. In Challenge Mode, he appears immediately after the player defeats Bowser Jr. at the Wario City stadium, stating that he turned invisible and was watching the whole game. However, he is uninterested in joining the player's team unless the team has some Boos with them. This is accomplished by both recruiting Boo and finding the Mini Boos item. King Boo has good chemistry with Petey Piranha, Boo, Wiggler, and King K. Rool, but he has bad chemistry with Mario, Luigi, Yoshi, Baby Mario, Baby Luigi, Baby Peach, and Baby Daisy.

His baseball bat no longer has a physical crown on it. In this game, it is represented as a crown picture above the "Boo mouth" picture. As well, in this game only, the colors of the jewels on his crown are reversed.

Super Princess Peach[]

King Boo returns in Super Princess Peach by appearing as a boss. After adventuring through Shriek Mansion in Vibe Island, Peach discovers an imprisoned Toad, but as she goes to save him, the Boos in the room teleport the Toad away and this is where Peach discovers King Boo is making his lair and engages him in combat. During the battle, King Boo fires blue homing fireballs at Peach and chases her regardless of whether she looks at him or not. Peach can damage King Boo with direct light, which is made by having his own flames light the candles spread throughout the room. After a few attacks, King Boo uses his Gloom vibe, which causes him to cry, extinguishing the candle flames that are below his location. This makes lighting the top candles first recommended. After enough attacks, King Boo is eventually defeated. With King Boo eliminated, Peach rescues the Toad and continues her adventure.

Mario Party series[]

Mario Party 8[]

King Boo makes his first appearance in a Mario Party game in Mario Party 8. He gives out Stars on his own board King Boo's Haunted Hideaway. He hides in one out of three altars and gives the player a Star for ten coins if they can find him where he is hiding. If the player is able to buy the Star, he starts to "summon the bizarre" and disappears, causing the player to jump into a Warp Pipe that returns them to the starting point. This "makeover mojo" causes the whole layout of the course to change. However, if they do not have enough coins, King Boo causes a pitfall to appear under the player, causing them to return to the starting point and allowing the next player that reaches him to buy the Star. Additionally, if the player fails to steal anything from the board event Pickpocket Pinball, the hosting mouse sounds like King Boo. The player can purchase King Boo sounds from the Fun Bazaar, along with a figurine titled "King Boo's Revenge". When the player presses A on the figurine during the Figurine Parade, King Boo floats up and gives off a brilliant glow, as if he is a light bulb.

Mario Party 9[]

King Boo appears as the stage boss of the board Boo's Horror Castle in Mario Party 9. He is fought in the minigame, King Boo's Puzzle Attack, where the competitors line up power-ups in lines of three or more to deal damage to him. Once his health reaches halfway, he throws Boos onto the field which can stun the player's cursors, making them unable to move until they shake the Boo off. What is unique about his boss battle is that if a player gets the Final Attack, they get ten points instead of the usual three, likely because the players can easily accumulate points up to fifty. In the final fight against Bowser, King Boo can also appear to hinder the players' progress. If Bowser throws the die with all the stage bosses' faces on it and King Boo's face appears on top, King Boo materializes above the stage. Then, he summons five Boos that move in a counterclockwise direction while moving outwards. When the Boos reach the boundaries of the stage, King Boo summons another five Boos, except this time they move clockwise. After that, King Boo disappears from the battle unless his face appears on the top of the die again.

Like most other characters in the game, King Boo has a constellation that can be returned to the sky; it is called the Ghost Major. It is located in the farthest left portion of the sky, near King Bob-omb's constellation and right next to Boo's constellation. Like all constellations, it can be bought for fifty Minigame Points. Also, in the Museum's Sound Test, there are two voice sounds with the name "King Boo's Entrance"; one is of King Boo and the other is actually of Boo.

Mario Party 10[]

King Boo reappears in the next title, Mario Party 10. He returns as a boss in the minigame King Boo's Tricky Tiles. In order to defeat him, the player must remember which platforms are false, and then run around until they can jump on a light switch (one is worth 3 points, and another worth 1 point). Like other bosses, King Boo gets angered after the players deplete his health halfway. The technique that King Boo uses is that he swaps Boos with platforms and he blocks the camera, so the player can't see the platforms very well and remember which ones are false. He can also be seen on the Luigi Board, which appears in the game's amiibo Party mode.

Mario Party: Star Rush[]

King Boo returns as a boss in Mario Party: Star Rush in his minigame, King Boo's Light Smite. In order to defeat him, players have to use Light Boxes which they need to carry over rotating platforms while evading Peepas. Once he loses half his health bar, the rotating platforms start moving faster, making it more difficult to reach the other side.

Mario & Sonic series[]

Mario & Sonic at the Olympic Winter Games[]

In the Wii version of Mario & Sonic at the Olympic Winter Games, King Boo appears as the first and sixth (in Individual Festival mode only) rival. King Boo races the player in the Alpine Skiing Downhill event in both Individual and Group Festival modes but he only races the player in Giant Slalom in the Individual Festival mode. King Boo has no skis so he goes down the hill smoothly. If the player loses to him, the guide (either Cream or Toad) says that it is unfair because King Boo has no skis.

In the Adventure Tours mode in the DS version of Mario & Sonic at the Olympic Winter Games, King Boo is the mid-boss of Polastraits. When the challenger approaches him, King Boo tells Mario/Sonic that he must race someone afraid of him. He selects Luigi and they must race in Giant Slalom. In this version, King Boo is transparent and the player can ski through him. He also appears slightly larger than in his other appearances.

Mario & Sonic at the London 2012 Olympic Games[]

King Boo appears in the next installment of the Mario & Sonic series, Mario and Sonic at the London 2012 Olympic Games. In the Wii version of Mario & Sonic at the London 2012 Olympic Games he is one of the characters that can be found in the London Party mode, and when he is encountered, he challenges the player to the Dream Sprint event. Since he has no feet, though, it is questionable how he gets the ball to roll. If the player reaches the goal line before him, they get a sticker as an award.

In the 3DS version of Mario & Sonic at the London 2012 Olympic Games, King Boo teams up with a Boo to face Sonic and Tails in the Badminton Doubles event. After winning, the player completes Sonic's second episode.

Mario & Sonic at the Sochi 2014 Olympic Winter Games[]

King Boo appears in Mario & Sonic at the Sochi 2014 Olympic Winter Games as a rival in the Legends Showdown mode. He is found in Area 4, and is raced against in Short Track Speed Skating 1000m.

Mario Golf: World Tour[]

King Boo makes a cameo appearance in Mario Golf: World Tour on Hole 4 of Bowser's Castle. He is floating in the background alongside other Boos, and he is also much larger than in other games. His name can also appear on the tournament scoreboard.

Super Smash Bros. series[]

Super Smash Bros. for Nintendo 3DS/Wii U[]

King Boo appears as a trophy in the 3DS version Super Smash Bros. for Nintendo 3DS/Wii U.

Super Smash Bros. Ultimate[]

He also appears in his Luigi's Mansion: Dark Moon design as an Advanced-class Neutral-type primary spirit in Super Smash Bros. Ultimate, being the enhanced form of the Boo spirit after it has reached level 99. When equipped, the spirit grants the fighter slower fall speed after jumping and has 3 support slots. King Boo is listed as the 49th spirit in the American English version, though he is listed as the 121st spirit alongside the rest of the Luigi's Mansion series spirits in the British English version of the game.[2]

Puzzle & Dragons: Super Mario Bros. Edition[]

King Boo appears as an enemy in Puzzle & Dragons: Super Mario Bros. Edition, mostly appearing at the Ghost House courses. His main attribute is Dark, while his sub-attribute is Light.

As an ally, King Boo's skill can heal 1000 HP, and change all Heart Orbs into Dark Orbs. His Awoken Skill raises the amount of time that the player has to move Orbs around.

As an enemy, King Boo is capable of decreasing the player's maximum time to move Orbs around. Also, King Boo is treated as a generic enemy, so he can still appear as an enemy, regardless of whether or not the player has King Boo in their party.

When King Boo attacks, a bunch of Boos attack with him.

King Boo's best stats are his ATK and RCV, while his HP is at an average level. The player can get King Boo by using six Boo Mushrooms on a Big Boo.

Mario & Luigi: Paper Jam[]

King Boo appears as a boss in Mario & Luigi: Paper Jam, making his official Mario & Luigi series debut. King Boo has a Papercraft version of himself controlled by Morton and Lemmy, which is fought in Bowser's Castle. The Mario Bros. use Papercraft Yoshi to fight it.

The real King Boo is encountered and fought in Gloomy Woods after the trio separate, leading to him kidnapping Mario and Paper Mario; leaving Luigi alone to find them, like in the Luigi's Mansion series. After finding Mari], he and Luigi begin to look for Paper Mario. They eventually find King Boo instead, disguised as Paper Mario. When they group together, King Boo reverts back to normal and laughs at the Bros. for a second, before re-transforming; Mario and Luigi then turn around, and are unaware of King Boo's presence. When they turn around again, King Boo reveals himself again, but is caught by the duo. In an attempt to fool them, he immediately reverts back to Paper Mario, and tries to convince the Bros. that he is the real Paper Mario, but fails. King Boo then transforms into Paper Peach and then Paper Bowser, before finally giving up; reverting back to his true form, causing the battle to commence.

King Boo attacks by spitting blue fireballs at either Mario or Luigi before inhaling them; making them need to avoid the fireballs twice, and splitting into five copies before floating slowly towards the trio, turning invisible as he gets near; which the trio must counter using their hammers around 2 seconds after a copy turns invisible. During the battle, King Boo calls a Paper Boo holding the real Paper Mario onto the battlefield; threatening to harm Paper Mario if the bros attack either himself or the Paper Boo. In order to save Paper Mario, Mario and Luigi must defeat the minion holding onto Paper Mario, causing it to drop him. If King Boo is attacked while the Paper Boo is on the battlefield, he deals damage to Paper Mario. After a few turns, another Paper Boo can grab Paper Mario again, taking him out of the battle (which gets rid of Paper Mario's copies) temporarily. Finally, King Boo also has a chase attack where he grows bigger before attempting to shoot a giant blue fireball at the trio; which Mario and Luigi have to counter by throwing Paper Mario's boomerang form into King Boo's mouth while it is open. Once defeated, Paper Mario is reunited with the duo and the group continues to Mount Brrr.

Due to his crown, King Boo is immune to the brothers' Jump attack (but he can be hit by Hammer attacks, unlike Paper Boos) and certain Bros. Attacks, such as the Rocket Blast and Mega Thwonk's jumping attacks (only in the arcade). Attacking King Boo using attacks from above results in the Bro. taking 1 damage as if they were jumping on a spiked enemy. The Dropchopper, however, can circumvent this as it can be aimed towards King Boo's forehead instead of his crown and can then damage him.

King Boo has 1421 hit points, 219 attack, 219 defense, and 171 speed.

The splitting attack used by King Boo is a reference to (if not a direct copy of) the Dark Star's splitting attack in Mario & Luigi: Bowser's Inside Story, except King Boo takes damage if countered unlike the Dark Star's version due to it being invincible. As well, if the Mario Bros. continue to attack King Boo without freeing Paper Mario, his slapping Paper Mario may be an allusion to Lady Bow and her slap attacks[3]. Also, King Boo's voice clips from Mario Kart Wii are reused.

Mario + Rabbids Kingdom Battle[]

King Boo makes a cameo appearance in Mario + Rabbids Kingdom Battle in Spooky Trails, where an image of him can be found on the ground in the area where the gramophone is found.

Mario Tennis Aces[]

King Boo appears in Mario Tennis Aces as part of the Boo Hunt Co-op Challenge available from version 2.0.0. When Frenzy Time is active, King Boo appears and hovers around the court. Players can continuously hit tennis balls at him to earn more coins. He disappears once either his health bar or the Frenzy bar is depleted. In this appearance, he does not use any of his normal voice clips, instead using those of a regular Boo.

The Super Mario Bros. Movie[]

King Boo makes his animation debut as a cameo in The Super Mario Bros. Movie. He appears as one of the guests at Bowser and Peach's forced wedding.

General information[]

Physical appearance[]

King Boo's appearance has changed throughout his video game history. In his debut appearance in Luigi's Mansion, King Boo has dark red eyes, a blue tongue, two vampire-like fangs, a greenish complexion, and a ruby crown. In recent appearances, he resembles a white Boo with a golden, five-pointed crown, though he is noticeably larger. As well, the crown has a blue jewel on the front and four red jewels around the sides in every game except Mario Super Sluggers, where the colors are reversed. He first appeared in this form in Mario Kart: Double Dash!!, and it remains his current appearance to this day. However, his appearance in Luigi's Mansion: Dark Moon shows him with his original appearance, although he retains a full row of four teeth. He also has his eyes surrounded by a black shadow and has a more purple mouth and tongue, as well as his crown having a purple jewel. He has also lost his original green tint, now ranging from purplish to pure white. His new speech icon in the remake of Luigi's Mansion however, does have green shading.

Personality[]

King Boo is shown to have a deep hatred for the Mario Bros., especially Luigi after he defeats him in Luigi's Mansion. He says that he fears nothing except the Poltergust 3000, although in Super Mario 64 DS he admits that Wario's face scares him, rendering the previous statement a generalization. In Mario Super Sluggers, King Boo says that he finds little Boos cute. He actually considers his Boo minions as his friends and cares for them. This is shown in Luigi's Mansion where he goes to free Boolossus after he is captured by Professor E. Gadd, and when he threatened to hurt Paper Mario if the Mario Brothers dared to hurt his Paper Boo minion in Mario & Luigi: Paper Jam. He also has good chemistry with the playable Boo in the Mario Baseball series. In Mario & Sonic at the Olympic Winter Games, he says that he is unbeatable at the Alpine Skiing events, though this is proven false when the player beats him. Bowser would sometimes call upon him to aid him in his plans showing that the two of them are allies. He does not seem to care for ghosts that are not Boos; however, he uses them in his plans as tools rather than subjects. After breaking out of the portrait he was placed in at the end of Luigi's Mansion, he displays a complete disregard for anything that interferes with his revenge and displays several sociopathic traits: including a disregard for others' well being, and at one point nearly causes the reality of the Mushroom World to collapse. King Boo also loves to scare and toy with his opponents. Despite King Boo's huge size, he still covers his face in fear when looked at, much like a normal Boo, showing that he still has a shy nature like his minions; however, also like a normal Boo, he attacks when his foe's back is turned. Professor E. Gadd comments on how King Boo redecorated the Treacherous Mansion to make it scarier. He also goes into fits of rage when his plans do not go the way he wants. Although King Boo is much larger than regular Boos, he is not the largest of the Boos. However, even gigantic Boos like Boolossus follow his leadership despite their superior size. Lastly, King Boo has a distinct cackle, which is significantly lower in pitch than other Boos. He also has an echo in his roar. At least in Luigi's Mansion: Dark Moon, King Boo also has a bit of a sarcastic demeanor as well, as when formally revealing himself to Luigi before fighting him, when referencing his earlier defeat at the hands of Luigi, he says "Good times" over the recollection of the event despite obviously being angry and vengeful over the earlier defeat.

Powers and abilities[]

Besides possessing the abilities of other Boos, including the ability to teleport, King Boo has a numerous amount of other powers. Notably in Luigi's Mansion, King Boo's power increases when he is in the presence of other Boos. For example, King Boo has the power to blow Luigi to the Foyer when enough Boos are in the mansion. King Boo also has the power to materialize things, including pulling a highly detailed mansion out of the ghost dimension and creating lifelike paranormal replicas of some of Mario's enemies. He has shown the ability to create Boos or dimensions to battle in and even bubbles and blue fire, which he spits out of his mouth. King Boo is also shown to be able to regenerate from his crown in Super Princess Peach. He is shown to also have the power to grow in size as seen in Luigi's Mansion: Dark Moon.

In Luigi's Mansion: Dark Moon, King Boo exhibits new abilities such as being able to open paranormal portals (which lead to the ghost dimension), create traps such as sand patches, electrify the terrain to shock Luigi, and teach Boos how to create Spirit Balls. His new crown can also shoot an ectoplasmic laser that can shatter the Dark Moon or trap Toads within paintings. King Boo can create illusions, hence his title "The Master of Illusions." His power is also no longer reliant on the presence of other Boos, although it is stronger when there are other Boos in the vicinity.

King Boo appears with a rather high power stat in many of his spin-off appearances. This is most noticeable in the Mario Baseball series, where he is able to hit home runs with relative ease. His great strength is also shown in Luigi's Mansion: Dark Moon as he summons spike balls and makes them fall down, even the larger ones, simply by slamming the platform. King Boo also appears to be a good Alpine Skier, as he states that he is exceptional at that event, though this remains questionable due to his lack of skis (or legs for that matter).

In Mario & Luigi: Paper Jam, King Boo showed the ability to shapeshift, shown when he tries to trick Mario and Luigi by posing as Paper Mario, and later briefly transforming into Paper Peach and Paper Bowser. He also had the ability to spit blue fireballs.

Boo leadership[]

Although he commands a large band of Boos, not all Boos call King Boo their leader, with some Boos working directly for Bowser, and many others living peacefully with the other denizens of the Mushroom Kingdom, either independently or as part of a small band of Boos led by Lady Bow. King Boo is still the leader of Boos that appear in the Luigi's Mansion series, as all Boos are under his control.

Relationships[]

King Boo initially considered Mario as his main adversary, however after his defeat at Luigi's hands during Luigi's Mansion, Luigi has become King Boo's arch-nemesis. Parallels are often drawn between Luigi and King Boo's relationship and Mario and Bowser's. King Boo also hates Professor E. Gadd for his ghost-capturing hobby, even stating that the only thing that scared him was E. Gadd's invention, the Poltergust 3000. In Luigi's Mansion: Dark Moon, King Boo reveals a desire to get revenge on E. Gadd as well as Luigi, by trapping the scientist within a portrait of his own.

King Boo has been shown to work with Bowser on numerous occasions, including Super Mario 64 DS, Mario Party 9 and Super Princess Peach. He also used a Bowser decoy and the two shared a portrait after King Boo's defeat in Luigi's Mansion. Despite their apparent alliance, the two share neutral chemistry in Mario Superstar Baseball and Mario Super Sluggers, with King Boo appearing on Wario's team, rather than Bowser's. King Boo has also been paired up with Petey Piranha as in Mario Kart: Double Dash!!, with the two sharing chemistry in the Baseball games, although their relationship has never been fully explored. He also has an unknown connection with King K. Rool, due to having good chemistry with him in Mario Super Sluggers.

Stats[]

Gloomy Woods[]
Stats
Sprite
KingBooPaperJam
Level 29
HP 1421
Power 219
Defense 419
Speed 171
Weakness None
Experience given 3250
Coins given 880
Item Drop Guard Wear DX (100%)
No Hitter N/A


Boss Battle Ring[]
Stats
Sprite
KingBooPaperJam
Level 39
HP 1890
Power 380
Defense 622
Speed 264
Weakness None
Experience given 0
Coins given 0
Item Drop None
No Hitter N/A


Game appearances[]

Titles Description Release date(s) Systems/formats
Luigi's Mansion Main Antagonist, Final Boss 2001 Nintendo GameCube
Mario Kart: Double Dash!! Unlockable Playable Character 2003 Nintendo GameCube
Super Mario 64 DS Boss 2004 Nintendo DS
Mario Superstar Baseball Playable Character 2005 Nintendo GameCube
Super Princess Peach Boss 2005 Nintendo DS
Mario Kart DS Boss 2005 Nintendo DS
Mario Party 8 Non-Playable Character 2007 Wii
Mario Kart Arcade GP 2 Cameo 2007 Arcade
Mario Kart Wii Unlockable Playable Character 2008 Wii
Mario Super Sluggers Playable Character 2008 Wii
Mario & Sonic at the Olympic Winter Games' Rival 2009 Nintendo DS/Wii
Mario & Sonic at the London 2012 Olympic Games Rival 2011 Wii/Nintendo 3DS
Mario Party 9 Boss 2012 Wii
Luigi's Mansion: Dark Moon Main Antagonist, Final Boss 2013 Nintendo 3DS
New Super Luigi U Cameo 2013 Wii U
Mario & Sonic at the Sochi 2014 Olympic Winter Games Rival 2013 Wii U
Mario Golf: World Tour Non-Playable Character/Cameo 2014 Nintendo 3DS
Super Smash Bros. for Nintendo 3DS/Wii U (3DS) Trophy 2014 Nintendo 3DS
Mario Party 10 Boss 2015 Wii U
Puzzle & Dragons: Super Mario Bros. Edition Boss 2015 Nintendo 3DS
Mario & Luigi: Paper Jam Boss 2015 Nintendo 3DS
Luigi's Mansion Arcade Main Antagonist, Final Boss 2015 Arcade
Mario Party: Star Rush Boss 2016 Nintendo 3DS
Mario Kart 8 Deluxe Playable Character 2017 Nintendo Switch
Mario Kart Arcade GP VR Playable Character (during a limited-time event)/
Unlockable Playable Character (for permanent use, through a limited-time event)
2017 Arcade
Mario + Rabbids Kingdom Battle Cameo 2017 Nintendo Switch
Mario Tennis Aces (version 2.0.0) Boss 2018 Nintendo Switch
Luigi's Mansion (3DS) Main Antagonist, Final Boss 2018 Nintendo 3DS
Super Smash Bros. Ultimate Spirit 2018 Nintendo Switch
New Super Mario Bros. U Deluxe Cameo 2019 Nintendo Switch
Dr. Mario World Assistant 2019 iOS/Android
Mario Kart Tour Playable character, along with two other playable variants. 2019/2019/2020 iOS/Android

Quotes[]

  • "What's that he's got on his back!? It's E. Gadd's Poltergust 3000! Everybody scram!" - Luigi's Mansion
  • "White gloves! A cute little moustache! Soft shoes! How did you get out of my...? ... Huh? Wait just a second... Your clothes are...green... Hey, you must be Luigi! Whoa, you had me a bit confused for a moment there! What? You want me to release Mario? Riiiiight. No, no, no. I will not give up my favorite decoration. I like Mario just where he is. Hey, so what's that you got there? A Poltergust 3000?! Uh oh! What should we do, Boos? Good idea, guys! All Boos in this area, gather your strength! We'll blow him away!!! ... We'll take a big Boo breath... ...and blow you away!!" - Luigi's Mansion
  • "Aahh, I could just stare at my Mario painting for hours! It's true what they say about fine art...it takes utterly refined sensibilities to truly appreciate it! The way you plead for help, Mario... I find it so...satisfying. Perhaps that is merely because I remember how much trouble you've caused me in the past. ... Seriously, though, who would actually believe that mansions get given away in contests?! Talk about stupid! What do they feed you Mario brothers anyway...gullible soup? Your brother came all this way just to get turned into a painting... It's just terrific. However... This Mario painting looks lonely... I must have a Luigi painting as well! Then my gallery will truly be complete! Bleah HA HA! I am not afraid of you, fool! I fear only that infernal Poltergust 3000 you carry on your back! Stupid machine! But I am a KING among Boos! I swear it... I shall fear no mere house-cleaning device!! I must say...I despise the way you SHWEEERRPP-SHLOOOOP-WHOOORPP-SHLEEEOOORG-vacuumed up all my friends! Don't imagine that I'll flee... I'll fight you like a true Boo! Now join your brother... ...inside the painting!" - Luigi's Mansion
  • "Mwah ha ha! Now what do we have here? Why, if it isn't my old pal Luigi! Or is it Baby Luigi? I can't tell the difference. Hey, remember that time you trapped me in a painting for all eternity? Good times. But guess what? I GOT OUT! And now I'm painting the town RED! Yes, it was I who broke the Dark Moon! This power-enhancing jeweled crown of mine made it easy. And now that all the ghosts of Evershade Valley are under my control, it's time to take my rightful place as supreme ruler of your world! You, that annoying scientist, and all your friends will look great hanging from the wall of my throne room!" - Luigi's Mansion: Dark Moon
  • "Gwahaha! If it isn't my good friend, Luigi! It's me, your ol' pal KING BOO! Y-You're not telling me you FORGOT ME!? Well, I certainly haven't forgotten YOU! You, that ratty vacuum cleaner, and that stinky old geezer who made it! I haven't forgiven what you did to me, so I've led the ghosts here in an uprising! But you... you and that DISGUSTING machine just SHLEEEERP-SHWOOOOOP-SWHLOOORPSHLOOOORP-SHWEEEERPed them all up! You think I'll let you get away with that!? You're going down this time, Green 'Stache!" - Luigi Mansion Arcade
  • "Look at this little scrap. Friend of yours, is he? Well, if you like your friend, you better stop attacking me! Now, don't go thinking it's OK to attack my little minion either. Who knows what could happen if he dropped your little friend there... You got that?" - Mario & Luigi: Paper Jam
  • (signpost) "Big Boo's Haunt. Eee hee hee...There are no exits. You may as well wander in here forever...Listen carefully. Can you hear me? If you find me, you're history. Eee hee hee..." - Super Mario 64 DS
  • (to Mario before getting Luigi's key) "Eee hee hee! I am Big Boo, the spookiest of all the spirits! I locked up the whimpy green moustache man. And I'll do the same to you! Eee hee hee! Since I'm a ghost, I can turn invisible in the mirror's reflection. You'll have to attack me from behind to defeat me. But you'll die of fright before that ever happens! And then you'll be one of us!" - Super Mario 64 DS
  • (to Mario after getting Luigi's key) "Eee hee hee... I am Big Boo, the spookiest of all the spirits. I love scaring wimpy humans. Eee hee hee... You'll never sneak behind me!"
  • (defeated) "Eee hee hee! You can never really kill a ghost! We always come back! See you again. Eee hee hee!" - Super Mario 64 DS
  • (to Luigi) "Eee hee hee! I am Big Boo, the ghastliest of all ghosts! What the...? I thought I locked you up...Well, never mind. Now I'll really creep you out! You can't escape...Eee hee hee!"
  • (defeated) "Eee hee hee! We ghosts always rise from the dead. I just love the look of terror on your face! In fact, I live for it! Eee hee hee! See you soon!" - Super Mario 64 DS
  • (to Wario) "Eee hee hee! I am Big Boo, the scariest of the spirits. Eek! What's this?! Your face... It would even scare a ghost. How horrible! You've got it backwards... I do the scaring around here! All right, now I'll put some real fear in that frightening face of yours! Eee hee hee!"
  • (defeated) "Augh! The scariest one wins, and your face is flesh-creepingly frightening. Good thing I don't have any flesh! Eee hee hee! This is not the end. See you again." - Super Mario 64 DS

Trivia[]

  • In Mario & Luigi: Paper Jam, King Boo's voice clips from Mario Kart Wii are reused.
  • in Mario Kart Wii King Boo is one of very few characters to have his standing animation on the Character Select screen altered from Mario Kart: Double Dash!! In this case, his tongue is not sticking out of his mouth the whole time like before; now, before selecting him, his tongue is still in his mouth.
  • When King Boo says, "I will not give up my favorite decoration. I like Mario just where he is.", he references a quote from Star Wars VI: Return of the Jedi, when Jabba the Hutt says, "I will not give up my favorite decoration. I like Captain Solo where he is."
  • King Boo is one of the three characters who appear as a rival in Mario & Sonic at the London 2012 Olympic Games, but does not appear as a playable character in Mario & Sonic at the Rio 2016 Olympic Games. The other two are Boo and Magikoopa.

References[]

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