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The Turtle Empire that rivals the Mushroom Kingdom. Led by King Bowser, they serve as the primary antagonists of the franchise.


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    Baby Bowser 
https://static.tvtropes.org/pmwiki/pub/images/baby_bowser_yi.png
Voiced by: Dolores Rogers (2005-2006), Caety Sagoian (2007–present)

Baby Bowser (also known as Baby Koopa) is just that: Bowser Koopa as an ill-tempered young tot. Even as a youngster, Baby Bowser was often up to no good, causing lots of trouble for the inhabitants of Yoshi's island and frequently kidnapping the baby forms of his future rivals: Mario and Luigi. He’s the main antagonist of the Yoshi’s Island series, and has appeared as a major antagonist in other Mario games like Mario & Luigi: Partners in Time. Not to be confused with his future son, Bowser Jr., whom he greatly resembles.


Tropes associated with Baby Bowser:

  • Alliterative Name: Baby Bowser.
  • Attack of the 50-Foot Whatever: He grows to gigantic proportions in his iconic boss fight in the original Yoshi's Island. He also does this in the other games you fight him in, but not nearly as big as his first go around.
  • Baby Talk: He seems to have an inconsistent age throughout the games he appears in, as in some games his speech pattern sounds normal, like in Mario & Luigi: Partners in Time, and other games it's more babyish, like in Yoshi's Island and Yoshi's New Island.
  • Black Bead Eyes: Like most baby characters, Bowser had these, his true eye color (red) not becoming apparent until adulthood.
  • Bratty Half-Pint: Spoiled to the core, Baby Bowser is just as egocentric as his adult form, constantly demanding things and throwing tantrums the moment he doesn’t get his way. He even insults his older self at several points, calling him a fat old geezer who should have taken over the world by now.
  • Breath Weapon: In contrast to his future son, Baby Bowser is skilled at breathing fire in every depiction he’s in, and in Yoshi's Island DS it’s even his special ability when selected.
  • Card-Carrying Villain: He's so obsessed with being evil that at one point he only drinks a glass of milk when he's told it was taken from an "evil cow".
  • Divergent Character Evolution: Inverted. Though they've always looked more similar than different, Baby Bowser used to have a few noticeable differences from Bowser Jr. Starting with Mario & Luigi: Partners in Time, he's redesigned to look almost exactly like Bowser Jr., except for his blank white bandanna, and his voice clips are even recycled from Bowser Jr. This was reverted in Yoshi's Island DS, but in Yoshi's New Island again uses Bowser Jr.'s exact in-game model except he lacks the bandanna. They diverge a bit in Yoshi's Woolly World, however, with Baby Bowser reverting to his older body proportions and posture, only for Yoshi's Crafted World to go back to him looking exactly like Junior.
  • Drop the Hammer: He keeps a mallet on hand to fight with in Mario & Luigi: Partners in Time.
  • Dub Name Change: Along with the usual "Koopa/Bowser", he is also an indirect case: In Yoshi's Island and Yoshi's Woolly World, the final stages are named "King Bowser's Castle". However, this is only the case in the english versions with the Japanese level names simply calling him "Baby Bowser" or just "Bowser".
  • Enemy Mine: He briefly teams up with Yoshi in Yoshi's Island DS to fight against his future self.
  • Enfante Terrible: Even when he was a baby, Bowser was just as nasty as he would be as an adult.
  • Establishing Character Moment: Foreshadowing their future relationship, Baby Bowser is first introduced in Partners in Time when he’s trying to kidnap Baby Princess Peach.
  • Evil Prince: Since he's just a kid, he's usually addressed as Prince Bowser (particularly in Partners in Time). It's unknown who the current King of the Koopas is, or if there even is one.
  • Fiery Red Head: Bowser had an even worse temper as a child than he does as an adult.
  • Generation Xerox: Though he prefers brute force over his future son's more tricky approach, they look identical and share many personality traits.
  • Gold Fever: Baby Bowser loves treasure, and whenever he finds some he declares that it’s all ‘his’ and thinks anyone else getting near him wants to steal it.
  • Greater-Scope Villain: While he's the overall Big Bad of the Yoshi's Island series and generally leaves most of the work to Kamek, Baby Bowser is in this role for much of the original Yoshi's Island; There's no clear indication that he sent Kamek to mess with the stork even though it's clear Kamek did it to ensure that Bowser would have no one to oppose him later in life.
  • Ground Pound: One of his primary attacks in the original Yoshi's Island and in Yoshi's New Island.
  • Hypocritical Humor: He scolds the baby Mario Bros. for stealing food after he literally just ate a bunch of cookies that he stole.
  • My Future Self and Me: He's met his older self in two separate series. The two successfully team up together in Mario & Luigi: Partners In Time, with neither of them realizing they’re the same person. In the Yoshi's Island series, his older self actually kidnaps him, causing Baby Bowser to become adult Bowser's enemy. And in Yoshi's New Island, the adult Bowser shows up out of nowhere to fight Yoshi after Baby Bowser’s defeat- though why he does so remains completely unknown.
  • Parental Substitute: He has no known parents to speak of, and is largely raised and cared for by Kamek.
  • Royal Brat: Unlike his adult self, who is generally kind to his minions, Baby Bowser isn’t beyond stomping on them out of annoyance, insulting them, and having them slave over his every need.
  • Throw the Dog a Bone: A recurring theme is that he really wants to ride a Yoshi, which he calls a ‘Gween Donkey’, a wish that does eventually come true for him in Yoshi's Island DS.
  • Vocal Evolution: Most of the games when his voice would be heard have him similar to Bowser Jr.'s voice. However, in Yoshi's New Island, Baby Bowser's voice clips are pitched higher to make him sound more baby-like.
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    Kamek 
https://static.tvtropes.org/pmwiki/pub/images/kamek_nsmbw.png
Does Baby Mario want to go to Bowser's castle? I'll take him there in a hurry!
Voiced by: Chafurin (Super Mario World: Mario & Yoshi's Adventure Land), John Stocker (animated series), Atsushi Masaki (games)
"Welcome!!! Yoshi, if you would be so kind, please HAND OVER THE BABY!"
Debut: Super Mario World 2: Yoshi's Island

An evil Magikoopa, the turtle wizard Kamek has been serving Bowser since the Koopa King's infancy and is one of his most trusted minions. He flies around on his broomstick bringing woe to Mario and his pals, but usually prefers to sic giant monsters on our heroes instead of tangling with them head-on. Slightly confusingly, "Kamek" is also the general name of the Magikoopa species in Japan and Nintendo of Europe's localizations.

Tropes associated with Kamek:

  • Affably Evil: Kamek is usually quite polite, if witty and sarcastic, even using terms of endearment to refer to Yoshi and politely asking him to turn over baby Mario.
  • Arch-Enemy: To the whole Yoshi race, even though Baby Bowser is nominally behind him.
  • Ascended Extra: Whilst it was never said to be him in the original game, the Mario & Luigi: Bowser's Inside Story remake confirms that he was indeed the unnamed magikoopa that appeared at the beginning of the game. He then goes on to be a major player in Bowser Jr.'s Journey.
  • Badly Battered Babysitter: When Bowser was but a child, Kamek found himself stomped on, ground-pounded, and yelled at by his bellicose ward on a regular basis.
  • Beleaguered Assistant: In Partners in Time, where he's forced to cater to the whims of the bratty Baby Bowser.
  • Big Bad: Of the Yoshi's Island series, but especially the first game.
  • Bonus Boss: In Yoshi's Crafted World.
  • Brainwashed and Crazy: In Super Mario RPG, where he is being controlled by Smithy's gang until you knock some sense into him.note 
  • The Cameo: The Magikoopa that sends Mario off into space in the opening of Galaxy is him.
  • Deadpan Snarker: Kamek is pretty sarcastic in the RPGs, especially Sticker Star.
  • Defeat Means Friendship: In Paper Mario: Color Splash, his Enemy Card can be won from the Rock Paper Wizard in Super Roshambo after his defeat, which summons him to cast a spell for a turn. However, he refuses to attack bosses like the Koopalings or Bowser.
  • Demoted to Extra: After being the major antagonistic force in Sticker Star, Kamek's role is comparatively smaller in Paper Mario: Color Splash, namely by cursing Mario during battles. He is responsible for playing around with the sizes in Mondo Woods, but is still overall a step down from being The Dragon.
  • Doppelgänger Attack: Splitting into multiple copies seems to be a favored tactic of his; he's done it in Partners in Time, Sticker Star and Dream Team. His paper counterpart also splits into a screen full of copies to act as a shield for his real world counterpart in Paper Jam.
  • The Dragon: When Bowser Jr. isn't filling the role. Sometimes, he and Jr. work together as Co-Dragons.
    • Dragon-in-Chief: In the Yoshi's Island series, he is nominally one of Bowser's subjects but as Bowser is just a baby at the time, he serves as the most prominent enemy towards the Yoshis.
  • Drop the Hammer: How he does Make My Monster Grow transformations in Yoshi's New Island.
  • Dual Boss:
    • Like the Bowsers and the Jrs., Kamek and his paper counterpart fight together in Mario & Luigi: Paper Jam
    • While not fought directly, he actively attacks Yoshi alongside Baby Bowser in Yoshi's Woolly World.
  • Dub Name Change: See above for the whole mess.
  • Dub Induced Plothole: The Prima trading cards claim he's the Magikoopa that knocks Mario off in the beginning of Galaxy. This doesn't explain why he never appears again. In Japan, it was simply a generic Magikoopa. There are also clearly a few instances where Magikoopa applies to his name and Kamek applies to his species, contradicting established nomenclature.
  • Even Evil Has Loved Ones: He raised Bowser and cares for him as if he were his own son. This is apparently mutual on Bowser's part, going from their interactions in games like Dream Team where Bowser shows more respect towards him than he does towards Kammy Koopa.
  • Evil Genius: Some of his portrayals, particularly Paper Jam, suggest that he is the brains of the Koopa Troop.
  • Evil Sorcerer: As a high-ranking Magikoopa, Kamek is responsible for enlarging and shifting Bowser's minions, and often Bowser himself.
  • Faux Affably Evil: In some portrayals his civil manner comes off more as a condescending facade, as he seems to actually take great delight in messing with the heroes.
  • Flunky Boss: In his second battle with the Bros. in Dream Team as well as his boss fight in Paper Jam. He can summon a pack of Goombas and Spinies for an attack, and can also summon a herd of Dry Bones.
  • Flying Broomstick: His transportation method of choice in most of his appearances.
  • Flying Weapon: As Giant Kamek in Super Princess Peach, his (also giant) wand floats beside him and he directs it by waving his arms.
  • The Heavy:
    • Bowser may be the Big Bad of Sticker Star, but he appears only at the start and end of the game and has no dialogue. Kamek shows up repeatedly throughout the worlds to make your life difficult.
    • This is his general role in Yoshi games after the first; Baby Bowser usually wants something and Kamek is in charge of getting it as well as trying to shake the Yoshis on his tail.
  • I Just Want to Be Beautiful: It's subtly implied that Kamek doesn't really like how he looks. Mario Party DS describes Kamek as being self-conscious enough that he hexes photos of himself to be permanently dusty and in Paper Jam he constantly takes potshots at his paper counterpart's appearance while refusing to believe they look alike.
  • Instant Runes: The Magikoopas shoot what look like PlayStation button symbols at you.
  • King Mook: He's seemingly the highest-ranking of all the Magikoopas, although he looks no different from any other Magikoopa; he wears a white apron over his robe in Mario & Luigi: Partners in Time, but no other Magikoopas appear in that game.
  • King of Games: In Mario Party Advance, he holds the title of "Game Mage".
  • Leitmotif: He has several in the Yoshi series, using playing right before he supersizes the boss. He also has a theme in Paper Mario: Sticker Star called "The Blue Wizard" which is remixed into "Malevolent Magikoopa".
  • Magical Nanny: To Bowser when he was young, and whenever he's assisting the Koopalings or Bowser Jr.
  • Make My Monster Grow:
  • Mana Burn: In Sticker Star, he has a spell that randomly destroys one of your stickers. This is especially an issue at Bowser's Sky Castle: hope that sticker wasn't one of Bowser's weaknesses!
  • Named by the Adaptation: In Japan, he's normally just called by his species generic name. However, the Japanese version of Super Mario RPG named him Kamezard (カメザード), a portmanteau of Kamek and Wizard.
  • Nice Job Breaking It, Herod!: If anything, Kamek's scheme to prevent the conflict between Mario and Bowser by getting to Mario while he was still an infant only accomplished the opposite effect; in effect, he began the conflict by getting the ball rolling.
  • Odd Friendship: In "Super Mario Party", despite what he usually does, Toadette and Kamek became friends during the game.
  • Oh, Crap!: In Yoshi's Island when his screaming wakes up Baby Bowser. The royal pain promptly flattens him. He also gets this earlier when he finds out that by throwing an egg at Naval Piranha before he shows up, you already killed it.
  • Older Than He Looks: Raised Bowser when he was a toddler, yet doesn't look a day older when his king is an adult.
  • Old Retainer: Possibly. He did serve under Bowser when the koopa king was a small child, although we've yet to meet Bowser's parents.
  • Opaque Lenses: His lenses are a pale white which mask his eyes.
  • Other Me Annoys Me: Just like Bowser, Kamek seems to find his paper counterpart intolerable, though they do end up having respect for each other and get along in the end. For all of ten seconds.
  • Parental Substitute: For Bowser when he was young.
  • Portmanteau: His Japanese name, exclusive to Super Mario RPG, is one of his species type, Kamek, and the english word for Wizard.
  • Psychic Powers: Including clairvoyance, precognition, hypnosis, and telekinesis.
  • Random Encounter: In Paper Mario: Color Splash, Kamek may randomly ambush Mario and cause a random event like stealing or obscuring Mario's cards.
  • Rage Against the Reflection: Mario Party DS suggests that Kamek makes photos of himself purposely dusty so he doesn't have to look at them.
  • Reality Warper: Can use every effect spell an ordinary Magikoopa can, and is able to Time Travel in Yoshi's Island DS and turn the entire area around Peach's Castle into Mordor in New Super Mario Bros. U.
  • Recurring Boss:
  • Red Oni, Blue Oni: The blue to Bowser and Bowser Jr's red.
  • Robe and Wizard Hat: He's clad in the blue robes and peaked hat of the Magikoopas, though his occasionally have white trim to set him apart.
  • Sad Battle Music: The theme that plays in the room where he is attacking Yoshi right before entering Baby Bowser's room in Yoshi's Woolly World just screams this.
  • Scary Shiny Glasses: His glasses are a part of his scary shadow in every appearance.
  • Shoe Slap: For the second and third battles in Sticker Star, he turns all of your stickers into... sandals, forcing you to fight by slapping him in the face with flip-flops.
  • Smug Snake: In Sticker Star and Dream Team. As mentioned under Faux Affably Evil, he just loves to patronize.
  • Snark-to-Snark Combat:
    • The majority of his encounters in Sticker Star has him snarking back and forth with Kersti.
    • He also throws shade at his paper counterpart over the course of Paper Jam, with the latter returning the favor.
  • Standard Royal Court: He and the other Magikoopas are the token wizards of the kingdom.
  • Squishy Wizard: Very much so in Sticker Star. Compared to the staggering amounts of health chapter bosses boast, Kamek has a measly HP total of 20 each time you face him, relying on trickery to avoid being curb-stomped.
  • Teleport Spam: In the final hallway before reaching Bowser's room in Yoshi's Island and Yoshi's Woolly World, Kamek confronts you personally, shooting at you with his magic and transforming blocks into random Mooks, but if you try to hit him at all he teleports away.
  • Terms of Endangerment: He has several interesting ways of referring to Yoshi, including "Yoshikins" and "Yoshi-baby" before siccing a giant monster on him.
  • Time Paradox: In Yoshi's Island DS, one Kamek steals Baby Bowser from another Kamek. What?
  • Unexplained Recovery: He turns to ash in Paper Mario: Sticker Star, and shatters to pieces after turning white in Paper Mario: Color Splash. Admittedly this happens all the time to both named and minor members of the Koopa Troop.
  • The Unfought:
  • Villainous Breakdown: In Yoshi's Island, Yoshi consistently stymies his efforts to collect Baby Mario, leaving him so agitated that by the time you reach Baby Bowser's room he can barely form coherent sentences.
    YOU! are n-n-not welcome HERE!!! Yoshi, please hand OVER THE BABY!
  • Villainous Crossdresser: He disguises himself as Peach in New Super Mario Bros. Wii and Mario & Luigi: Dream Team. In the latter, he inadvertently reveals he likes her dress. Mario And Luigi Partnersin Time also sees him wearing a frilly, white lace apron over his usual robe.
  • Wizards Live Longer: A possible explanation why he hasn't aged a bit in the present day games.
  • Wolfpack Boss: His third and final battle in Dream Team, where he makes specialized clones of himself for attacking, buffing, and healing.
  • Worthy Opponent: In Sticker Star and especially Color Splash, he expresses great respect for Mario upon being defeated.

    Boom Boom 
https://static.tvtropes.org/pmwiki/pub/images/boom_boom_sm3dl.png

A large, brutish Koopa who usually guards fortresses.

Tropes associated with Boom Boom:

    Reznor 
https://static.tvtropes.org/pmwiki/pub/images/reznors_nsmb2.png

A quartet of fire-breathing Triceratops who guard fortresses.

Tropes associated with Reznor:

  • Recurring Boss: Four fights in Super Mario World, six in New Super Mario Bros. 2.
  • Stock Dinosaurs: They are fire-breathing Triceratops.
  • Wolfpack Boss: Always fought in groups of four. The only exception is the first world's tower in New Super Mario Bros. 2, where only two are fought.

    Pom Pom 
https://static.tvtropes.org/pmwiki/pub/images/pom_pom_sm3dl.png

A female, ninja-like counterpart to Boom Boom who prefers projectile attacks.

Tropes associated with Pom Pom:

  • Battle Boomerang: Uses one in Super Mario 3D Land.
  • Co-Dragons: With Boom Boom.
  • Dark Action Girl: One of the few known female members of Bowser's army.
  • Distaff Counterpart: To Boom Boom. The Prima Guide for 3D World claims that she's his sister.
  • Doppelgänger Attack: Her battle strategy in 3D World. The copies she creates appear to be solid, as their shurikens do damage.
  • Dual Boss: With Boom Boom in World 7-Airship and Special 8-Crown.
  • Even Evil Has Loved Ones: If her patting him on the back in the ending of Super Mario 3D World is of any indication, she and Boom Boom really connect.
  • Fuuma Shuriken: She throws these in Super Mario 3D World.
  • Glamour Failure: In 3D World, she can be told apart from her clones by the fact that her shuriken is pink, and the clones lack her green tie.
  • Go-Karting with Bowser: She's playable in Mario Sports Superstars.
  • Guys Smash, Girls Shoot: In contrast to Boom Boom's physical approach, Pom Pom fights by throwing projectile weapons such as boomerangs and shurikens.
  • Helpful Mook: The boomerangs she throws can be jumped on, and will give you a coin if you do so. In a less deliberate (but much more influential) example, she can be manipulated into giving you a fortune of 1-ups if you perform a certain trick.
  • Hidden Depths: The commentary in the official soundtrack for 3D World states that she wants to be refined and elegant, but is prone to losing her temper. Her battle theme is meant to reflect this.
  • Leitmotif: As mentioned above, she got her own unique boss music starting from 3D Land onwards like Boom-Boom.
  • Meaningful Name: Her Japanese name can refer to a state of fury, which fits with the short temper she's said to have.
  • Ninja: She has this schtick in 3D World; not only does she throw around a shuriken, but she uses hand seals to disappear in a puff of smoke and split into a mob of shadow clones.
  • Promoted to Playable: She becomes a playable character in Super Mario Party.
  • Recurring Boss: Fought multiple times in both 3D Land and 3D World. She's only the third female boss to appear in more than one game (following Wendy and Kammy Koopa).
  • The Smurfette Principle: The 3D Land website refers to her as the Koopa Troop's sole female member. Which she is, not counting Wendy, Kamella, or Kammy Koopa, who don't appear in the games she's in.
  • Suddenly Voiced: In addition to being Promoted to Playable in Super Mario Party, she also speaks for the first time.
  • Tertiary Sexual Characteristics: Her pink body, eyelashes, and ponytail.
  • Your Size May Vary: In 3D Land, she was roughly the same size as Boom Boom. In 3D World, she's smaller and roughly a head shorter than him.

    Koopa Troop 
https://static.tvtropes.org/pmwiki/pub/images/koopatroop_426.jpg
Clockwise from upper-left: Goomba, Boo, Bullet Bill, Thwomp, Spiny, Magikoopa, Piranha Plant, Hammer Bro, Koopa Troopa (center)
"Koopa Pack, ATTACK!"

Bowser's loyal legion of minions, the Koopa Troop (also known as the Turtle Tribe, Koopa clan or just the Koopa) is countless strong and made up not only of Koopa Troopas but also Goombas, Piranha Plants, Spinies, Bob-ombs, Bullet Bills, and other assorted baddies. Most of them aren't that bad, though; they just have a nasty boss.

The Koopa Troop is made up of a wide variety of "races"; the most common include:

  • Koopas: A race of anthropomorphic turtles. Bowser's rank and file, the Koopas include numerous variants. Their shells seem to be articles of clothing rather than part of their anatomy. Debut: Super Mario Bros. (or Mario Bros., as Shellcreepers were conceptually prototypical Koopa Troopas).
    • Paratroopas: Winged Koopas, who are able to hop around or outright fly. Become regular Koopas if jumped on. Debut: Super Mario Bros.
    • Buzzy Beetles: Small, four-legged turtles with hard, often fireproof shells. Commonly found in underground levels. Debut: Super Mario Bros.
    • Hammer Bros.: Koopas who attack by throwing small hammers. Has a bunch of subvariants such as Boomerang, Fire, Ice and Sledge Bros. Debut: Super Mario Bros.
    • Lakitus: Cloud-riding Koopas who wear visors and throw Spinies, quadruped turtles with spiky shells. Debut: Super Mario Bros.
    • Dry Bones: Skeleton Koopa Troopas that come back to life not long after being stomped. They usually stay in castles. Debut: Super Mario Bros. 3.
    • Magikoopas: Koopas dressed in wizard garb that are able to use magic. The aforementioned Kamek is considered the leader of the Magikoopas. Debut: Super Mario World
  • Goombas: These guys are the worst. Not only are they pathetic soldiers, but they're traitors, to boot! These armless shiitake mushrooms with Big Ol' Eyebrows once served the Mushroom Kingdom, but defected to Bowser. Debut: Super Mario Bros.
  • Piranha Plants: Barely-sentient carnivorous plants with a mouth full of razor-sharp teeth. Piranha Plants commonly live in pipes. Debut: Super Mario Bros.
  • Bloopers: Squids who aggressively chase Mario and co. In some games, they can shoot out ink. Debut: Super Mario Bros.
  • Chain Chomps: Black orbs with eyes, sharp teeth, usually a chain and not much else. They act like and seem to be the local equivalent of dogs. Unchained ones are often called 'Chomps', but not always. Debut: Super Mario Bros. 3.
  • Cheep Cheeps: Goggle-eyed fish that swarm underwater (and sometimes leap into the air). Debut: Super Mario Bros.
  • Bullet Bills: Living artillery that get shot out of cannons. Debut: Super Mario Bros.
  • Bob-ombs: Walking, wind-up bombs that explode when they get close to Mario. In the RPGs, we learn that they can reform after blowing up. Debut: Doki Doki Panic.
  • Urchins: Urchins who move in a limited pattern. Despite their limited movement, they are very tough as they can only be defeated with a few methods. In New Super Mario Bros. U, they appear angry when out of water.
  • Boos: Nasty little blobs of ectoplasm who chase Mario relentlessly. They're painfully bashful, though, and stop moving to cover their faces when anyone looks at them. Debut: Super Mario Bros. 3.
  • Lava Bubbles: Fireballs that leap out of the lava pits that Bowser so loves. Sometimes called "Podoboos" or, less often, "Sparkies" or "Spark Spooks". Debut: Super Mario Bros.
  • Monty Moles: Near-sighted little mammals that live underground and have a knack for machinery. Debut: Super Mario World.
  • Shy Guys: Humanoid creatures that always hide their faces behind masks, hence the name. Like Koopas, there are several varieties and colors, and they sometimes carry weapons. Debut: Doki Doki Panic.
  • Pokeys: Walking cacti made of round segments and with perpetually happy expressions. Debut: Doki Doki Panic.
  • Thwomps: Giant rock creatures lined with thick spikes and with perpetually angry expressions. They drop down to crush enemies and are often positioned in key spots to provide maximum annoyance. Debut: Super Mario Bros. 3.
And that's not even half of 'em!

Tropes associated with the Koopa Troop:

  • Action Bomb: Bob-ombs' main shtick.
  • A Day in the Limelight: Shy Guys are one of the less frequently occurring enemies, yet feature prominently in Yoshi's Island and Yoshi's Story
  • Adorable Evil Minions: Koopa Troopas, Shy Guys, Bloopers, and, in an Ugly Cute way, Goombas, Boos, and Dry Bones.
  • Affably Evil: Even though they serve the Koopa King, they bear hardly any animosity towards the heroes, and are overall friendly creatures. They're just doing their job out of loyalty to Bowser, and will gladly have parties and other get-togethers in the Mushroom Kingdom on their down time.
  • Always Chaotic Evil: Averted. In spinoffs some are shown to have their own personality and there are even several good members of these species that don't live under Bowser's rule. Even the ones that do work for Bowser are strongly implied to be Punch Clock Villains. In Super Mario Odyssey, for example, every Koopa Troopa is a friendly NPC, despite Bowser being the villain as usual.
  • Angry Guard Dog: Chain Chomps were inspired by a childhood memory of Miyamoto's, where he was almost mauled by one of these but saved by a chain that was just too short. They seem to be the in-game equivalent of dogs.
  • Anthropomorphic Food: A consistent design trend with Goombas. Standard Goombas look like mushrooms, Galoombas look like chestnuts, and Goombrats look like persimmons.
  • Anthropomorphic Shift: Starting in Super Mario World, Koopa Troopas started walking on two feet and wearing shoes.
  • Anthropomorphic Zig-Zag: In New Super Mario Bros., they're bipeds, but in Super Mario Galaxy, they're now back to being quadrupeds, but in New Super Mario Bros. Wii, they're bipeds again, and in Super Mario Galaxy 2, they're quadrupeds again, and in Super Mario 3D Land, they're bipeds again.
  • Art Evolution: Enemies will often change in appearance depending on the games. Skeeters in particular, as they've never been in two games with the same appearance.
  • Artifact Title: Tox Boxes looked like industrial metal boxes with spray-painted faces in Super Mario 64, gaining their name from "toxic" and "box". In Super Mario Galaxy, they're made of stone and resemble oni to make them more like Thwomps, but they retain the now-irrelevant name.
  • Badass Army: They may not appear like it, but they have conquered the Mushroom Kingdom multiple times, assaulted the Star Spirits, and kidnapped the local Crystal Dragon Jesus. In Dream Team, several members of the Koopa Troop don't appear as enemies until later in the game, but become the brunt of the enemies encountered afterwards. Including the Goombas.
  • Bedsheet Ghost: Boos are white circular blobs, while Peepas look like actual sheets.
  • Berserk Button: Wigglers are friendly caterpillars, but if you jump on them, they'll become angry, turning red and moving much more quickly. This was originally due to the Wiggler's flowernote  — in Super Mario World, bouncing on them would remove the flower, thereby setting their tempers off. Later titles apparently forgot the detail of the lost flowers, making the Hair-Trigger Temper a species trait.
  • Breath Weapon: Fire Bros. originally spat fireballs when they debuted in Super Mario Bros. 3, though later they were shown to throw them like Fire Mario does.
  • Breakout Mook Character: A Piranha Plant - of all things - somehow managed to make it into Super Smash Bros. Ultimate as a DLC character. Notably, it's the only generic mook from any Nintendo series to get this treatment.
  • Canon Immigrant: All the enemies that originated in Doki Doki Panic made their Mario series debut in Super Mario Bros. 2, as the game was reskinned (with Clawgrip being the only additional enemy). Nonetheless, they fit in well. This is mostly due to Miyamoto having been the lead designer of the game, and supposedly had more involvement in it than The Lost Levels. Granted, Doki Doki Panic was built off of a shelved Mario-like prototype.
  • Can't Move While Being Watched: In platformers, Boos will cover their faces and freeze in place when the Mario Bros. are facing towards them.
  • Cool Airship: They sometimes ride in these, which are essentially pirate ships held up by propellers in the air.
  • Dem Bones: The Dry Bones, Bony Beetles, and Fish Bones.
  • The Determinator: Goombas, according to Mario Party 9.
  • Drop the Hammer: Hammer Bros. fight by tossing their hammers. There are numerous variations of Hammer Bros. that all use different weapons, such as Boomerang Bros., Fire Bros., Ice Bros., Sledge Bros. and even rarer kinds like Yo Bros. and Chomp Bros.
  • Elite Mooks: The Hammer Bros., Lakitus, Magikoopas, Chargin' Chucks, and other bigger and badder Koopa variants.
  • Epic Flail: Being already a very heavy sphere on the end of a chain, a Chain Chomp can be wielded this way. Bowser does so in Super Mario RPG and, more inexplicably, it's the final weapon unlock in Bayonetta 2. It's also unlockable as a weapon for Link in Hyrule Warriors, used with the level 3 version of the Gauntlets.
  • Everything's Squishier with Cephalopods: Octoombas, alien and vaguely cephalopodic Goombas.
  • Evil Counterpart Race: The Goombas to the Toads, though some spinoffs like the Paper Mario games have good Goombas.
  • Expressive Mask:
    • Bandits may dress like Shy Guys, but their masks are capable of expressing a wider range of emotions. Their default is a good old fashioned Psychotic Smirk.
    • Shy Guys have occasionally been able to move their masks, but mostly they're only capable of manipulating their mouth-holes. You will rarely find fully expressive Shy Guys.
  • The Faceless: Shy Guys (and to a lesser extent their Snifit cousins) have only ever been seen with the same three-hole mask since the days of Doki Doki Panic and rely on body language to properly express themselves. They've rarely been seen without their masks, and only by Luigi. In Luigi's Mansion, there are Ghost Guys that manage to be even more faceless by virtue of masks without eyeholes. On the flipside, these ghosts are capable of losing their masks, revealing only a pair of glowing eyes under the hood, which may mean that Shy Guys are literally faceless.note 
  • Fantasy Axis of Evil: Each type and its variants fills a particular niche.
  • Giant Mook: Giant Land of Super Mario Bros. 3 featured colossal variants of standard Troop members like Koopas and Goombas. Its sequel Super Mario World introduced Big Boos and Banzai Bills, and following games have included more and more. In Super Mario Maker nearly any Troop member can be made giant via the Super Mushroom.
  • The Goomba: The one and only.
  • Hidden Depths: As the Mario RPGs show, a lot of the Koopa Troop members show that the troops are more intelligent than they seem. At least one Dry Bones enjoys table tennis, and even knows of how it first came to be.
  • Invincible Minor Minion: Lava Bubbles are invincible to everything but stars (and later ice balls). Boos are similar, though in some games they're weak to the light.
  • Just Following Orders: Bowser's minions very rarely bear any personal grudge against the heroes. They just really like Bowser a lot and follow him out of admiration. They have even cooperated and even allied with Mario and crew on occasion in the RPG and Party games and some become playable in the Sports and Kart games.
  • King Mook: Many of the enemy races have a powerful ruler with unique powers who reports directly to Bowser, including Goomboss (Goombas); Kamek, Kammy Koopa, and Kamella (Magikoopas); Petey Piranha (Piranha Plants); King Bob-omb (Bob-ombs); King Boo (Boos); and General Guy (Shy Guys); Bowser himself too (Koopa Troopas). Some races have giant or extremely powerful versions that have "King" in their name, like King Bill (NSMBWii, the Bullet Bill line) and King Kaliente (Super Mario Galaxy, the Octoomba line).
  • Mascot Mook:
    • The Goomba and Koopa Troopa are very much symbols of the series, just as much as Mario himself.
    • Shy Guys are the mascots of games with Yoshi as the central protagonist, as well as the international Super Mario Bros. 2.
  • Mecha-Mooks:
    • Bullet Bills and Bob-ombs, among others (Mechakoopas, Torpedo Teds, etc.).
    • Chomps are also implied to be these. The ones the the Galaxy subseries in particular simply roll in the direction they are moving and are built in factories, with only Silver Chomps being able to move on their own volition.
  • Mind over Matter: Implied to be how Goombas can grab things despite lacking arms. (Think VeggieTales, basically.)
  • Monogender Monsters: The Japanese site for 3D Land refers to Pom Pom as the lone female in Bowser's army. This implies that all of his common mooks are male.
  • Monster Town: Mainly in the Paper Mario games; most Koopas and Goombas are apparently normal homebodies just like the Toads, it's just the ones we see most often are Bowser's foot soldiers.
  • Monster Clown: Amps are often shown with clown-like faces.
  • Mooks: Some of gaming's most famous examples.
  • Morality Pet: In the RPGs, the mooks occasionally function as this to Bowser. He even lets some stay in the Monster Town in Super Mario RPG and forgives those three mooks who tossed him in a safe (while Brainwashed) in Bowser's Inside Story.
  • Musical Theme Naming: The Boos, who were originally named “Boo” Diddlys, an obvious riff on Bo Diddley.
  • My Species Doth Protest Too Much: Not every member of the species works for Bowser. This is displayed most in the first two Paper Mario games, which have helpful individual minions as your allies, though they also fight their usual mook counterparts. Super Mario Odyssey also shows that Goombas and Koopa Troopas freely hang around the Mushroom Kingdom.
  • Names to Run Away from Really Fast: In Japan, Bullet Bills are known as "Killer" and Banzai Bills are called "Magnum Killers." Banzai Bills have also been referred to as Magnum Bills (at least in the cartoons), Piranha Plants as well.
  • Night of the Living Mooks:
    • Many Koopa Troop races have undead counterparts, most notably Dry Bones (skeletal Koopas).
    • Don't forget the Boos and their many subtypes and allied ghosts.
  • Non-Indicative Name: Buzzy Beetles are not beetles, and they much less make any buzzing sounds.
  • Non-Lethal K.O.:
    • Several games heavily imply that Mario doesn't actually kill them and they can survive being stomped flat. It's most consistent and explicit with Goombas, Koopas, and Bob-ombs, though the others may vary from game to game. This is a franchise where "Extra Lives" and "Game Over" are canon after all.
    • The Koopalings in particular have been melted, exploded, disintegrated, etc., but always turn up fine next time. Same with Petey, King Boo, Kamek, and Bowser himself sometimes.
  • Non-Mammalian Hair: Super Mario Odyssey reveals that Hammer and Fire Bros. have hair under their helmets.
  • No-Sell: Buzzy Beetles are defined by their immunity to fire, giving the player one less avenue to defeat them as they would with the functionally-similar Koopa.
  • Our Ghosts Are Different: It's never made quite clear what exactly the Boos are.
  • Perpetual Frowner: The Thwomps tend to be this when their mouths are closed.
  • Promoted to Playable: Many Mario Spin-off titles allow you to play as a regular enemy. Usual suspects include a Green Koopa Troopa, a red Paratroopa, Dry Bones, Boo and Shy Guy, but others appear in at least one game.
  • Pulling Themselves Together: Dry Bones and their subspecies are known for reassembling seconds after an attack causes them to fall apart.
  • Punch-Clock Villain:
    • The Koopa Troop themselves are not The Evil Army, following Bowser out of genuine admiration more than anything other than the idea that they can be promoted over Bowser and boss him around and seem to have no guff with Mario on downtime. The Lakitus are a stand-out example, appearing regularly as friendly camera crews in Mario sports games.
    • World 4-5 of New Super Mario Bros. Wii even had blocks that release Lakitus who threw coins instead of Spinies.
  • Reality Warper: Magikoopas' spells have many different effects on objects, enemies, etc.
  • Red Eyes, Take Warning: Later designs of Buzzy Beetles have this, and you better take warning since they are flame-resistant.
  • Removable Shell: Mario can force a Koopa out of its shell in order to ride it or use it as a weapon.
  • Ridiculously Cute Critter: The Koopas.
  • Shock and Awe:
    • Fizzlits, blob-like purple creatures whose attack pattern is to melt into an electric puddle to try to electrocute Mario.
    • The red Thunder Lakitu can launch ball lightning, an ability that first appeared in the Super Mario Bros.: Peach-Hime Kyushutsu Dai Sakusen! anime movie, as a reference to the Shinto god Raijin.
  • The Spiny: Again, Trope Namer.
  • Superpowered Mooks: The Super Koopas in Super Mario World and the Tanoombas in the Mario & Luigi series. There are various Super Leaf and Super Bell-using mooks in 3D Land and 3D World respectively.
  • Took a Level in Badass:
    • Throughout the Mario & Luigi series. They went from being easily beaten and/or brainwashed in the first three games to forming the majority of the lategame enemies of their own will (and all this under Bowser, as opposed to the other games) in Dream Team.
    • A defining trait of Octoombas seems to be that they become tougher in each subsequent game they appear in. In Galaxy, their only attack was a close-range antenna whip, making them only slightly more of a threat than a Goomba. In the second game, they have a rock-spitting attack similar to the Octoguys, but with a faster and more direct arc. Elite Octoombas also appear, who spit two rocks in succession. In 3D World, there are only regular Octoombas, but they now spit three cannonballs in succession, and are made immune to all attacks but Ground Pounds.
  • Turtle Power: The Koopas.
  • Underground Monkey:
    • The blue subterranean Goombas from Super Mario Bros. are one of the first examples. Many, many variants show up, particularly in the RPG spinoffs.
    • Bullet Bill comes in a variety of calibres, including the massive Banzai Bill and the underwater Torpedo Ted (both from Super Mario World).
    • The Paper Mario games have plenty, including Elite Mook Koopatrols in full plate armour. (with spikes)
  • Undying Loyalty: Pun aside, Tattles from the first two Paper Mario titles imply that this is literally the case with Dry Bones under the Koopa King.
  • The Unintelligible: Several spin-off titles show that Dry Bones are only capable of speaking in "clacks", though their actual words are in parentheses for our convenience. Despite this, however, other characters seem to be able to understand them just fine.
  • You Don't Look Like You:
    • The Boos in Super Mario Sunshine are freakin' weird to look at; normal Boos are known for their iconic wicked smiles, while Boos from Isle Delfino all have the same dopey expression and let their tongues loll out.
    • All the enemies in Super Mario Sunshine look different from their Mushroom Kingdom counterparts, even Delfino King Boo. According to Encyclopedia Super Mario Bros., the Sunshine variants are actually created by Bowser Jr.'s Graffiti.
    • The Goombas in Super Mario World are round instead of mushroom-shaped. The Japanese version actually acknowledges these as a separate species (Kuribon as opposed to the usual Kuribo). In Super Mario 3D World, these round "Goombas" were reintroduced under a new name as Galoombas and they appear alongside normal Goombas, finally confirming them to be a different species.
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    Petey Piranha 
https://static.tvtropes.org/pmwiki/pub/images/petey_piranha_mta.png
"I will CRUSH you!"
Voiced by: Toru Minegishi (2002-present)

Petey is a mutated Piranha Plant who's uprooted himself and can walk around on stubby rootlike legs and, miraculously, fly around clumsily with his little leaf-hands. He's physically among the largest of Bowser's baddies, plus one of the dumbest. He's known as "Boss Pakkun" in Japan, as Piranha Plants are called "Pakkun Flowers" in Japanese.

Tropes associated with Petey Piranha:

  • Alliterative Name: Petey Piranha.
  • Ascended Extra: He started out as a relatively easy boss in Super Mario Sunshine and has since appeared in everything from golf and tennis Spin Offs to Super Smash Bros. Brawl.
  • Attack Its Weak Point: It's usually his belly button.
  • Bad Boss: He's capable of killing his own summoned Nipper Plants in Super Princess Peach.
  • Balloon Belly: Spraying water into his mouth makes him really bloated.
  • Beach Bury: He does this to himself during his battle in Partners in Time.
  • Blow You Away: He can whip up tornadoes in his second boss battle in Super Mario Sunshine.
  • Brains and Brawn: Petey Piranha is the brawn, while King Boo is the brains.
  • Breath Weapon: His ability to spit up goop.
  • The Brute: Finesse isn't his forte, but what he lacks in brains, he makes up for in brawn.
  • Dumb Muscle: He's not very intelligent, but he makes up for it with his strength. In some of his playable appearances, he's actually stronger than Bowser is.
  • Elemental Rock–Paper–Scissors: He's weak to both fire and ice in Partners in Time.
  • Extreme Omnivore: He can eat sports equipment and trophies among other non-edibles.
  • Eyeless Face: Like all members of his species. Doesn't stop him from able to do things like go-karting though.
  • Fast Tunnelling: In Partners in Time.
  • Flight: He can achieve it by flapping his leaves, but is obviously straining himself.
  • Flunky Boss: The goop he pukes up in Super Mario Sunshine can spawn enemies, and he can spit Nipper Plants in Super Princess Peach.
  • Friendly Enemy: While this is true of the entire Koopa-Troop to an extent, Petey tends to be downright amicable when "off the clock"
  • Green Thumb: His Mega Strike in Mario Strikers Charged has him enclose himself in a summoned plant bud.
  • Grievous Harm with a Body: He attacks the player with cages containing the captive Peach and Zelda in Super Smash Bros. Brawl.
  • Ground Pound: Uses a maneuver similar to this in New Super Mario Bros.
  • King Mook: Of the Piranha Plants.
  • Large and in Charge: According to the official height chart, he's actually taller than Bowser. For the record, Bowser is listed as about 8'7", while Petey is a whopping 12'9".
  • Make Me Wanna Shout: Oddly, in Super Princess Peach.
  • Mighty Glacier: In his playable appearances, he's ridiculously strong and slow.
  • More Teeth than the Osmond Family: As is typical of Piranha Plants.
  • Mutant: Various bios describe him as one.
  • Mysterious Past: In his debut, it was assumed he was just created by Bowser Jr., only for Partners in Time to show he's been around for years, and even worked for the Shroobs.
  • Off-Model: In Mario Pinball Land, Petey looks... weirder than usual.
  • Older Than They Look: Partners in Time reveals he looked exactly like he does in the present day while everyone else was just a toddler.
  • Poisonous Person: One of his attacks is vomiting sludge.
  • Roar Before Beating: Gets a rather disproportionately epic one in Super Mario Sunshine.
  • She's a Man in Japan: And English-speaking regions, too, actually, but Petey is female in Germany (where "she" is known as Mutant Tyranha) and France (where "she" is named Flora Piranha, referring both to the petals on "her" head and "her" gender).
  • Shockwave Stomp: In Super Princess Peach.
  • Those Two Bad Guys: Usually partnered with King Boo in spin-off games.
  • Took a Level in Badass: Pretty easy to fight in Super Mario Sunshine, but in his playable appearances Petey is often a very strong character with great playability. And his appearance in Super Smash Bros. Brawl actually made him somewhat scary. In Mario & Luigi: Partners in Time, New Super Mario Bros., Paper Mario: Sticker Star and Paper Mario: Color Splash, he actually gets somewhat challenging.
  • Underwear of Power: Wears a red polka dot speedo that matches his head.
  • The Unintelligible: Except when under the influence of a Royal Sticker.
    Petey: SHINY PETEY TIME!
    • Lampshaded by himself in Paper Mario: Color Splash:
    Petey: GLORP GLAP? GORGLE ORGLE GLEP! (What am I thinking? These guys can't understand me anyway!).
  • Your Size May Vary: In Super Mario Sunshine, he was as large as a small house. In spin-offs, he is much smaller (though still larger than everyone else).
  • Warm-Up Boss: He's an early boss in Sunshine, and the first boss of The Subspace Emissary in Brawl. In both appearances, he is easy to defeat.
  • With Great Power Comes Great Insanity: In Sticker Star, like every other boss.

    King Boo 
https://static.tvtropes.org/pmwiki/pub/images/king_boo_dark_moon.png
"If you hear me laughing, that means you're doomed!"
Voiced by: Toru Asakawa (2001-present)

King Boo, a big ol' round blob of ectoplasm. He first appeared in Luigi's Mansion as the final boss that Luigi must face before clearing his house of its ghost infestation. Since then, he's appeared in the Mario Kart series and some of the Mario sports titles before reprising his role as the Big Bad and Final Boss in Luigi's Mansion: Dark Moon, in which King Boo destroys the eponymous Dark Moon and uses the Evershade Valley ghosts in a mad quest for revenge. He's set apart from the other Boos by his great size, crown, and formidable magical powers (which increase in potency when more of his Boo servants are nearby). In accordance to his subjects, his Japanese name is "King Teresa".

Tropes associated with King Boo:

  • Advancing Boss of Doom:
    • During the final fight in Dark Moon, in between fight phases, King Boo will chase Luigi through an obstacle course in an attempt to flatten him. Also serves as a Shout-Out to Indiana Jones.
    • On a similar note, Luigi's Mansion 3 has a sequence where he chases Luigi down a hallway.
  • A Father to His Men: One of the few redeemable traits he has is that he genuinely cares for his fellow Boos, going so far as to even stage a rescue for Boolossus when he was captured by E. Gadd prior to Luigi's Mansion. In Dark Moon, however, he never mentions this and puts his Boos in harm's way on at least one occasion, dropping this trait.
  • Amazing Technicolor Battlefield: In both Luigi's Mansion games, he's fought in a floating arena with color effects; the one in Luigi's Mansion is the same as the other bosses from the game, but fiery orange instead of blue/purple.
  • Amplifier Artifact: His new crown in Dark Moon.
  • An Ice Person: When you blow off his Bowser suit's head to reveal King Boo, it starts floating and firing ice balls that can freeze you, something originally intended for Bowser himself in Super Mario 64.
  • And I Must Scream: Has been on both ends of this trope. Trapped Mario in a painting during Luigi's Mansion, gets sealed in a painting himself at the end of the game, and plans to return the favor to Luigi and his friends in Dark Moon. In the remake of Super Mario 64 he also manages to trap Luigi in a mirror.
  • Apocalypse How: Attempts either a Class X-4 or Z, and comes really, really close to pulling it off.
  • Arch-Enemy: Ever since Luigi pulled the old sucker machine on him and his plans, he's developed a locked-on hatred for the man in green.
  • Authority Equals Asskicking: He's the leader of the Boos simply because he's bigger and stronger than the others. He managed to escape from E. Gadd's painting, on his own. When he returns in Dark Moon, he manages to destroy the dark moon and take over...seconds after showing up there. He also fights Luigi one-on-one during the Final Boss this time, instead of fighting in a giant Bowser suit.
  • Ax-Crazy: Based on his appearance and actions in Dark Moon, it's safe to say that his defeat in the first game unhinged him a bit. As 3 seems to show, his defeat in the second game cost him the rest of his sanity.
  • Badass Boast: Gives a terrifying one to Luigi when they finally meet face to face in Dark Moon.
    King Boo: Now who 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 when 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 the supreme ruler of your world! You, that annoying scientist, and all your friends will look great hanging from the wall of my throne room! Aaaaaahahaha!
  • Badass in Charge: Of the Boos.
  • The Bad Guy Wins: Not lasting victories mind you, but by Luigi's Mansion 3 he has managed to successfully imprison Mario no less than 3 times, and Luigi at least once giving him the best track record for any antagonist in the series. He also managed to capture Peach and several toads as well, but given their track records, this is a much less impressive feat.
  • Beat Them at Their Own Game: In Luigi's Mansion, he can actually suck you up like your own vacuum. This is also how he drags you into the fight when you confront him in his lair.
  • Bedsheet Ghost: Much like the Boos, he gives off this vibe.
  • Best Served Cold: In Dark Moon, He plans to turn Luigi and his friends into paintings. He only mentions Luigi, Mario, the Toads, and Gadd as targets. Whether he has plans to do this to anyone else is... uncertain. He states that he's also after all of their friends, though he doesn't specify which.
  • Beware the Silly Ones: Don't be fooled by his simple appearance and snarkiness, he's much more dangerous than he looks.
  • Big Bad: In Luigi's Mansion and its sequels; he's the ghost Luigi needs to defeat.
  • Blow You Away: Utilizes this on Luigi if he tries to enter the Secret Altar prematurely in Luigi's Mansion.
  • Bond Villain Stupidity: Some background scenes suggest that King Boo is capable of ambushing Luigi several times over the course of Dark Moon, suggesting that this whole thing is sadistic "fun" to him.
  • Brains and Brawn: The brains to Petey Piranha's brawn. While both are classed as Power type characters in the Mario Baseball series, King Boo's batting stat is not as high as Petey Piranha's, and he has a slightly weaker throwing arm compared to Petey.
  • The Bus Came Back: After being left out of the base game's roster, King Boo reappears in Mario Kart 8 Deluxe.
  • Cardboard Prison: That painting he was trapped in at the end of Luigi's Mansion? He broke himself out. And this was before he found his new crown.
  • The Chessmaster: Masterminded the plot to bring all the ghosts in Evershade Valley under his control in Dark Moon. Especially evident in the opening of E-3, where it makes it plain that he knew the whole time you were spying on him and was spying right back at you.
  • Co-Dragons: With Goomboss and Chief Chilly in Super Mario 64 DS, as Bowser has them guard Mario, Luigi, and Wario.
  • Creepy Shadowed Undereyes: Acquired these in Dark Moon.
  • Cuteness Proximity: His reaction to the Mini Boos in Mario Super Sluggers.
  • Darker and Edgier: In Dark Moon. All his redeemable traits he had in the first game vanish completely making him a pure malignant ghost and one of the evilest villains in the Mario Bros. universe.
  • Deadpan Snarker:
    "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?"
  • Depending on the Writer: He's a Knight of Cerebus Big Bad in the Luigi's Mansion series, but a garden variety King Mook in every other Mario spinoff. This even extends towards his appearance, with King Boo having a much more distinct and sinister design in the Luigi's Mansion games.
  • Dirty Coward: In Mario & Luigi: Paper Jam, he captures and uses Paper Mario as a hostage during his fight, threatening to hurt him if attacked.
  • Disproportionate Retribution: His revenge plot in Dark Moon in general, counts as his wrath extends to those who had nothing to do with his imprisonment, such as the Toads he captures. But his prominent act is after Luigi defeats Big Boo. He rips open a Paranormal Portal to unleash an army of ghosts and conquer the universe in retailiation. Forget disproportionate, that's just overkill.
  • Distinctive Appearances: Stands out among Boos due to his red eyes and blue tounge. And in Dark Moon, his appearance is further altered, the eyes are now shrunken in with a black shadow, making him look more dangerous and insane.
  • Dramatic Irony: Despite Dark Moon not making a flick of effort to hide that King Boo is the Big Bad, Luigi and E. Gadd don't find out until the beginning of E-3.
  • Early Installment Weirdness: The standard characterization for King Boo is that of a loyal subject of Bowser and a high-ranking member of his army, being a prankster or Dirty Coward at most beyond that. His characterization in his debut was as an independent villain with his own forces that at least had connections to Bowser who wanted revenge on the brothers for his race's past defeats. The only other game to follow up on this is, naturally, Dark Moon, which develops his original self into a new take on the character.
  • Evil Laugh: Has a distinct giggle from most Boos and he laughs constantly. It almost borders Laughing Mad.
  • Evil Sorcerer: He can whip up a mansion in no time at all.
  • Fangs Are Evil: His fangs are as menacing as his face.
  • Faux Affably Evil: : As his interaction with Luigi in Dark Moon shows, he'll talk to you like your best friend when it's painfully obvious he despises you with every fiber of his being.
  • Final Boss: Of both Luigi's Mansion games; in the first one, he's got Mario in the very last room in the mansion Luigi can physically enter. You need 40 captured Boos and the key from Vincent Van Gore to get into this room. In the second, he intercepts Luigi after the last Possessor is defeated and brings him to his own dimension.
  • Flight: The fact that this gives him an unfair advantage in spin-offs is lampshaded in Mario & Sonic at the Olympic Winter Games, where he is once again a boss, and does not actually use any skis in the skiing race against him.
  • For the Evulz: While King Boo does have a plan, some of the things he does are purely for sadistic kicks.
  • The Fourth Wall Will Not Protect You: A rather terrifying in-universe example. When you examine the security image before E-3, he turns around within the static image and gives a terrifying Evil Laugh before making the shot fade to static.
  • The Gambler: Implied.
    • In his debut in Luigi's Mansion, the keys to the various parts of the mansion have playing card suit motifs.
    • The King Boo of Super Mario Sunshine hides in Hotel Delfino's casino, where he battles Mario while holding a water-powered slot machine that can summon enemies, coins, or fruit.note 
  • Glowing Eyes of Doom: His eyes in Luigi's Mansion 3 now have a purple glow.
  • Go-Karting with Bowser: Despite his deep hatred of Luigi, he has no issues challenging him to a friendly race in Mario Kart: Double Dash!!, Mario Kart Wii and Mario Kart 8 Deluxe. In Double Dash!!, you can team up King Boo with Luigi.
  • Hoist by His Own Petard: Luigi has to hit him with his own summoned spike balls in Luigi's Mansion, and the light cast by his own flames can hurt him if they light nearby candles in Super Princess Peach. And in Dark Moon, Luigi must trick him into being hit by his own spiked balls again to vacumn him.
  • Inconsistent Dub: In Super Mario 64 DS, he is misnamed "Big Boo" even though there is an existing Big Boo boss in the game. This was corrected in Mario Kart DS, which used only bosses from Super Mario 64 DS in its Mission Mode.
  • It's Personal: When King Boo and Luigi finally meet face-to-face in Dark Moon, it's quite clear that despite his composure, he really wants Luigi dead. This combines with some Terms of Endangerment to create some really creepy dialogue.
    King Boo: Hey, if isn't my old pal Luigi. Or is it Baby Luigi? I can't tell the difference. Hey, remember that time when you trapped me in a painting for all eternity? Good times.
  • King Mook: Of the Boos, obviously. The same physics for sucking up Boos applies to King Boo except for the Boo Radar, which for some reason does nothing when you're in his presence.
  • Knight of Cerebus: Becomes this in Dark Moon. His Laughably Evil tendencies are completely gone, his snarkiness is more restrained, and he becomes downright terrifying.
  • Large and in Charge: Downplayed. He's much larger than the average Boo, but even larger Boos such as Boolossus follow him.
  • Load-Bearing Boss: The mansion disappears altogether when King Boo is captured.
  • Manipulative Bastard: Turned all the benevolent ghosts evil, including the horned Possessors.
  • Mask of Sanity: He acts calm and collected all of the time, but it's shown in Dark Moon that underneath his calm, yet frightening appearance is an insane, unfettered sociopath who is, by the end, steadily breaking down, which becomes especially apparent in his boss fight, in which the background and music start becoming fast-paced and erratic.
  • Master of Illusion: A rare case of the this trope overlapping with Reality Warper. The final level in Dark Moon is called King Boo's Illusion, a pocket dimension he created that he has total control over.
  • Monster Suit: Uses a biological-looking one modeled after Bowser in the final battle in Luigi's Mansion.
  • No-Nonsense Nemesis:
    • Adopts this attitude in Dark Moon after his defeat in the first game, and man does it make him look terrifying.
    • It seems to carry on to Luigi's Mansion 3. A blink-and-you'll-miss-it part of the E3 trailer suggests that he's actively trying to shove Luigi into a portrait rather than toying around with him like in Dark Moon.
  • Odd Friendship: With Petey Piranha in most of the sports games as King Boo is a cunning, sadist and Petey is a dumb brute. According to Mario Super Sluggers, he's also friends with King K Rool.
  • Playing with Fire: He attacks Peach with homing blue flames in Super Princess Peach. His Bowser suit in Luigi's Mansion can also breathe fire; getting hit has the same effect as a bomb ghost.
  • Psycho Electro: It's no coincidence that Dark Moon is the game in which King Boo both uses electricity and completely lost it.
  • Purple Eyes: Has them in Dark Moon which goes along with his royalty and super-natural powers.
  • Red Eyes, Take Warning: In some appearances.
  • Remember the New Guy?: In Luigi's Mansion, he tries to take revenge on the Mario Bros. for a number of past defeats. This was his first appearance in the series, though he retroactively appears in Super Mario 64 DS as another Big Boo. He also doesn't mention personal defeats in Luigi's Mansion, just the number of times the Bros. have beaten up on Boos.
  • Revenge: The whole plot of Dark Moon is his revenge against Luigi and his friends for his defeat in Luigi's Mansion.
  • Sanity Slippage: His debut appearance portrayed him as a Well-Intentioned Extremist who wanted to protect his fellow Boos. His appearance in the sequel, however, shows his defeat has turned him into an unfettered, sadistic, no-nonsense, sociopath who will do whatever it takes in his mad quest for revenge. His return in the third game makes this even worse, as he seems to have devolved further to the point of becoming an outwardly sinister lunatic who immediately starts shoving Luigi in a painting and chasing him through a hallway in a fit of rage.
  • Shock and Awe: His crown in Dark Moon can fire lightning bolts.
  • Slasher Smile: His default expression. The teeth help.
  • The Sociopath: In his debut, he showed care for his fellow Boos and worked to protect them. In the sequel, however? He's perfectly willing to eliminate anyone and anything in his path for revenge, and despite having to know by the final battle with him that Luigi's captured at least some Boos (and likely having known beforehand), he never mentions them and only talks about how he will make Luigi and Gadd pay dearly.
  • Sorcerous Overlord: Rules the first game's mansion where Mario is held prisoner.
  • Supernatural Is Purple: This ghoul gains both purple eyes and a purple crown in Dark Moon.
  • Tactical Suicide Boss: In the first game, when he throws spiked balls, you have to suck them up and fire them back at his suit's face when you can reach it to force King Boo out so you can suck him up.
  • Take Over the World: In Dark Moon, King Boo claims that this is his goal, but it's made very clear that he's more interested in revenge against Luigi.
  • Terms of Endangerment: Gives quite a few to Luigi in Dark Moon.
  • Those Two Bad Guys: Is usually paired with Petey Piranha in spin-offs, in a possible case of Brains and Brawn.
  • Took a Level in Badass: In Luigi's Mansion, his power was directly proportionate to the number of Boos in the vicinity. When Luigi captured them all, it weakened him to where he had to use a life-like puppet of Bowser to fight. His crown in Dark Moon, however, negates this handicap, allowing him to fight Luigi one-on-one with his own power and giving him new abilities such as calling down lightning strikes, summoning spiked balls, creating illusions, etc. "Fight you like a true Boo" indeed.
  • Tranquil Fury: His interaction with Luigi in Dark Moon is a perfect example. Despite his pleasant demeanor to Luigi, you can tell he's seething with rage on the inside. He drops the "tranquil" part in the third game.
  • Unexplained Recovery: It took two console-generations worth of games to answer how he managed to escape from the painting at the end of Luigi's Mansion.
  • The Unfettered: Dark Moon shows that King Boo has no limits to his insane desire for revenge. He'll sacrifice anyone and anything. His Boos, other ghosts, even the fabric of the universe itself! Nothing is beneath him as long as Luigi and E. Gadd suffer.
  • Unstoppable Rage: His ever-present grin finally drops in Luigi's Mansion 3, chasing down Luigi with a look of sheer anger on his face and knocking down anything in his way.
  • Vile Villain, Saccharine Show: As of Dark Moon, he definitely falls into this category. He was pefectly willing to shatter the Dark Moon and break the minds of innocent ghosts and later having his Boos experiment on them to make them stronger and more vicious, effectively making them all unwitting pawns in his mad scheme. And when Luigi defeats Big Boo, he rips open a Paranormal Portal to unleash an army of ghosts, which may also endanger their home dimension, which puts him practically on par with Dimentio in terms of evil.
  • Villainous Breakdown: In Dark Moon, E. Gadd states that King Boo "flipped out" after Big Boo's defeat and summoned a Paranormal Portal to unleash an army of ghosts as a desperate act to slow Luigi down. King Boo's breakdown is further exacerbated after Luigi defeats the Tough Possessor and makes off with the final piece of the Dark Moon. King Boo then intercepts the Pixelator and pulls him back into his illusion. The breakdown continues as the fight wears on, the music and the illusion becoming more erratic and unstable as he nears defeat.
  • Visible Invisibility: His reflection can be seen in the mirror in the background in Super Mario 64 DS.
  • Well-Intentioned Extremist: In the first game, he seemed to genuinely care for the other Boos. In the sequel, however, he seems to drop this.
  • What Happened to the Mouse?: Completely disappears from the plot of Dark Moon after the Final Battle. Luigi collects his crown, but it doesn't count for money.
  • Wrong Genre Savvy: His plan to fight Luigi by imitating Bowser was good on paper since Bowser is so strong. But while Luigi IS scared of Bowser, he's had years of experience defeating him and destroys the fake.
  • You Don't Look Like You: His appearance constantly changes throughout the series, leading some to wonder if it's the same character in every game.
    • In his debut in Luigi's Mansion, he looked distinct from other Boos due to his gleaming red eyes and blue tongue.
    • In most games he just looks like a regular Boo with a crown.
    • Luigi's Mansion: Dark Moon made him more closely resemble his original appearance, but with black shading around his eyes.
    • Super Smash Bros. for 3DS proved that despite the differing designs between games, he is the same character since the trophy shows his design used in the various spin-off titles, yet still alludes to his role in the Luigi's Mansion series.
  • Your Size May Vary: In some games, he is the same size as a normal Boo, but in others, he's larger. In Dark Moon, he's an outright Sizeshifter.

    Dry Bowser 
https://static.tvtropes.org/pmwiki/pub/images/dry_bowser.png
"So, you want to stick with us, huh? Eager to join our cause? Bwa ha ha ha!"

A skeletal version of Bowser. In his debut game, Dry Bowser was created in the first castle when Bowser was Stripped to the Bone after being dunked into a Lava Pit. Since then, he has made appearances as a separate character from Bowser, such as Mario Kart Wii and the Mario & Sonic series.

  • Background Boss: In New Super Mario Bros. 2, he attacks from the background in his second phase, just like regular Bowser.
  • Bad Boss: In his final battle in Super Mario 3D Land, his shockwaves will not only hurt Mario/Luigi, they will kill any other enemy they touch.
  • Bad with the Bone: Just like Dry Bones, he has the ability to throw bones.
  • Benevolent Boss: In the 3DS version of Mario & Sonic at the London 2012 Olympic Games, he treats his Dry Bones sidekick more like a friend than a minion, affectionately referring to him as "Bony, old boy".
  • Bonus Boss: In Mario & Luigi: Paper Jam, at the end of the Battle Ring's Medley mode.
  • Decomposite Character: And no, not because he's a skeleton. In his first appearance, he was an undead Bowser. In later games, Dry Bowser appears as his own entity. In Mario Party: Island Tour, Bowser refers to him as a "close family friend". And in the Mario & Sonic series, he assists Bowser and Eggman in their evil schemes. In Super Mario 3D Land, he's the major boss of the Special Worlds, and kidnapped Luigi.
  • Defeat Means Playable: Just like his living counterpart, if you defeat him in 'Puzzle & Dragons: Super Mario Bros. Edition, he will join your team.
  • Dem Bones: He's a skeletal version of Bowser.
  • Dracolich: He's a giant, undead, fire-breathing toothy reptile.
  • Divergent Character Evolution: In Mario Tennis Open, he's a Defense-type, while his living counterpart is a Power-type.
  • Downloadable Content: Mario Kart 8's April 2015 DLC adds him as a playable character.
  • Evil Redhead: Just like his living counterpart, Dry Bowser sports the same fiery red hair.
  • Evil Sounds Deep: He usually has a deeper version of Bowser's voice. In some games, he sounds downright demonic.
  • King Mook: While normal Bowser is this to the Koopas as a whole, Dry Bowser is this to the Dry Bones, their skeletal counterparts. He even falls apart and reassembles himself like one in his debut appearance, and he shares their immunity to fire.
  • Make My Monster Grow:
    • He turns giant New Super Mario Bros. 2, courtesy of the Koopalings' magic.
    • In Mario Party 10, after Bowser gets thrown into the lava at the end of the first phase of his boss fight, he reemerges as Dry Bowser and becomes giant.
    • Much like normal Bowser, he is permanently Mega in Mario Tennis Ultra Smash's Knockout Challenge.
  • Nobody Calls Me "Chicken"!: In the DS version of Mario & Sonic at the Olympic Winter Games, Blizza, one of the Snow Spirits, accuses him of being too afraid to face the heroes. He doesn't take it well.
    Dry Bowser: Too bad I'm through talking to you. Good bye!
    Blizza: Dry Bowser! I bet you're just scared of us!
    Dry Bowser: What did you call me?!
    Blizza: You're just trying to get out of challenging us, aren't you?
    Dry Bowser: Wh-What?!
    Blizza: Hah! I knew it! Wow, wait till everyone finds out about this...
    Dry Bowser: Ggggrah! You shouldn'ta said that! Nobody makes fun of Dry Bowser! Nobody!
    Blizza: A-ha! So you'll accept our challenge?
    Dry Bowser: Why you—! Fine! I'll see you on the field of battle— A Curling Bowling battle!
  • Nonmammalian Hair: His skin was burned off, but his hair remained intact.
  • One-Winged Angel: In Mario Party 10, halfway through his boss fight, Bowser himself turns into this form for the first time since New Super Mario Bros.
  • Promoted to Playable: Mario Kart Wii is his first playable appearance.
  • Recurring Boss: In Super Mario 3D Land, where he shows up in the special worlds for three boss fights. Unlike regular Bowser, he does not employ fakes, all three fights are against the real deal.
  • Red Eyes, Take Warning: If being a skeleton of the Big Bad of the series isn't scary enough, he also sports these to make himself more terrifying.
  • Technicolor Fire: His fire breath is blue, as opposed to his living counterpart's orange. His fire breath was still orange in his debut, though.
  • Tennis Boss: In Mario Party: Island Tour, the objective of his boss fight is to knock the bones he throws back at him with a hammer.
  • True Final Boss:
    • In New Super Mario Bros. 2, he's the boss of World Star, which is unlocked after beating the regular final boss in World 6 and requires 90 Star Coins to enter.
    • Happens again in Puzzle & Dragons: Super Mario Bros. Edition, where he is the boss of Special World 8.
    • He's usually the final opponent of Mario Tennis Ultra Smash's Knockout Challenge, except when using Dry Bowser himself.
  • Vocal Evolution: Inverted: For Mario Kart Wii and Mario & Sonic at The Winter Olympic Games Dry Bowser was given a distinct, deeper, heavily modified version of Bowser's voice. In later appearances, however, Dry Bowser's voice becomes a slightly lower pitched Bowser's, to the point of sometimes being barely distinguishable. He does regain his original voice in his Mario Party 10 appearance though.

    Other 

Fake/Tail Bowsers

https://static.tvtropes.org/pmwiki/pub/images/770px_tanooki_bowser.png
Debut: Super Mario Bros (Fake Bowser)
Debut: Super Mario 3D Land (Tail Bowser)

Members of the Koopa Troop who can disguise themselves as their king, gaining several of his abilities in the process. Fake Bowsers have been largely phased out in favor of unique bosses, but have a successor known as the Tail Bowsers, which are the same general concept except they utilize Super Leaves.

Tropes associated with them:

Big Boo

https://static.tvtropes.org/pmwiki/pub/images/atomic_boo_1199.png

Tropes associated with Big Boo:

Unagi/Maw-Ray

https://static.tvtropes.org/pmwiki/pub/images/unagi_9132.jpg

Unagi is a huge eel found in Jolly Roger Bay of Super Mario 64. He's invincible, but a Power Star is attached to his tail for Mario to grab. Multiple Unagis would later reappear in New Super Mario Bros. and Super Mario Odyssey, the latter of which renamed them Maw-Rays.

Tropes associated with Unagi:

Mad Piano

https://static.tvtropes.org/pmwiki/pub/images/mad_piano_2541.png
The Mad Piano is a piano that appears in Big Boo's Haunt.

Tropes associated with the Mad Piano:

Koopa Kid

https://static.tvtropes.org/pmwiki/pub/images/koopa_kid_3324.png
Debut: Mario Party (as "Baby Bowser")

Tropes associated with Koopa Kid:

  • Chuck Cunningham Syndrome: His latest appearance was Mario Party 7, as he appears to have been replaced by Bowser Jr. in the later games. Bowser Jr. literally replaces him in Mario Party: The Top 100, with his only appearance being a possibly-overlooked cameo on the box art representing earlier games.
  • The Clan: While the line about being the great "Koopa's Kid" was interpreted as "Bowser's Cohort" in the original Mario Party localization, Bowser and the Koopa Kid(s) were given a decidedly father-son relationship in the GameCube-era sequels. Bowser sure had a lot of kids.
  • Color-Coded Characters: The red, green, and blue Koopa Kids from Mario Party 5 and 6.
  • Demoted to Extra: After being playable in Mario Party 5 and 6, he went back to being Bowser's minion before dropping entirely.
  • Go-Karting with Bowser: He's a playable character in the Mario Party 5 and Mario Party 6.
  • I Have Many Names: Also known as Mini Koopa in Japan and Mini Bowser in PAL regions. Additionally, the first three Mario Party titles for Nintendo 64 mistakenly name him "Baby Bowser" in the English translations.
  • Literal Split Personality: In Mario Party 5, he has the ability to split into Red K. Kid, Green K. Kid, and Blue K. Kid. Multiple Koopa Kids have also been seen elsewhere (up to 99 in Mario Party Advance), although it's not clear from where they spawned.
  • Promoted to Playable: In Mario Party 4, he is an unlockable character, but only for the bonus mini-game Beach Volley Folly. In Mario Party 5 and 6, he's a fully playable character.
  • Suspiciously Similar Substitute: For the Koopalings; doubly so since at one point there were at least seven of them.
  • Token Evil Teammate: When he's playable.

Boss Sumo Bro

https://static.tvtropes.org/pmwiki/pub/images/bosssumobro_9935.png

Tropes associated with Boss Sumo Bro:

Elite Trio (Private Goomp, Corporal Paraplonk, and Sergeant Guy)

A trio consisting of a Goomba, a Paratroopa, and a Shy Guy, who make repeated appearances in the Mario & Luigi series, starting with the third game.

For their tropes, see their entry here.


Alternative Title(s): Super Mario Bros Bowser And His Baddies

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