Characters: Super Mario Bros: Bowser and his Baddies

A list of characters that includes Bowser and all of his main henchmen.
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    King Bowser Koopa 
GWA-HA-HA! It's good to be king!
"Yo! I kidnapped the princess while you were running around. She's here in my castle if you dare to try and rescue her."
Voiced by (English): Harvey Atkin (The Super Mario Bros. Super Show, The Adventures of Super Mario Bros. 3 and Super Mario World), Mark Graue (Hotel Mario), Scott Burns (video games, 2002-2008,2010), Eric Newsome (Super Paper Mario), Kenny James (2005, 2007-present)
Voiced by (Japanese): Akiko Wada (The Great Mission to Save Princess Peach), Masaharu Satō (original video animations), Naoki Tatsuta (Satellaview games)
Portrayed by: Dennis Hopper (live-action film)

The Big Bad of the franchise, Bowser constantly comes up with various schemes and plots to either defeat the Mario Bros, capture Princess Peach, take over the Mushroom Kingdom (or the world or the universe), or all three at the same time. Unfortunately for him, almost all of his plans fail due to the interference of the Mario Bros.

Bowser has varied a lot throughout the years, from a simple conqueror from another kingdom, a funny villain, a threat to the entire universe, or playing games with his supposed arch-enemy.

For his own take on himself, see here.

Tropes associated with Bowser:

  • Achilles' Heel: Fighting one of the Mario Brothers.
  • Acrofatic: In spite of his body build, he can jump as high as Mario, among other things. In fact, he often is able to jump higher than Mario. He can even run faster than Mario in Super Mario 64 (but only when charging) and Super Mario Galaxy.
  • Adipose Rex: In both senses of the word, no less.
  • Advancing Boss of Doom:
    • In New Super Mario Bros Wii, after defeating Bowser the first time, Kamek uses his magic to make Bowser bigger. Mario must avoid Bowser as he chases him through a lava filled level until he reaches a button and presses it to make Bowser fall into the lava.
    • In New Super Mario Bros 2 for the 3DS, after defeating Bowser (or Dry Bowser), the Koopalings us their magic to make him bigger. Mario must climb up platforms while avoiding Bowser's fire breath and claw swipes until he reaches a switch to make Bowser fall.
    • Most notably in Super Mario 3D World. The final battle is mainly Mario and co. attempting to climb the tower while avoiding Bowser (or Meowser), who constantly attacks them in an attempt to knock them off. And when he's been knocked off the tower the first time, he'll use a Double Cherry powerup to split into multiple copies of himself to continue the assault from practically every angle. The music also becomes faster and more intense as you near the top.
  • A Father to His Men: The degree to which he respects his minions varies with each story. Played the most straight in Bowser's Inside Story, and to a slightly lesser extent in Super Mario RPG and the Paper Mario series.
  • Affably Evil: Depending on the Writer, Bowser is more just a jerkish brute than outright malicious. It is also made clear he genuinely wants to act as a loving husband for Peach if not for the interventions of a certain plumber. And despite their rivalry, he does respect Mario as a Worthy Opponent. Arguably more Faux Affably Evil in the The Super Mario Bros. Super Show, though in later shows he cares too much about his Koopalings to count.
  • A God Am I: Bowser doesn't actually make this claim; however, his plan in both SMG and SMG2 is to take over the entire universe and rule it with Peach by his side forever, along with making his OWN galaxy in the center of the universe. SMG2, however, takes it to a whole new level when Bowser uses a few of the Grand Stars on HIMSELF, rather than use them to power up reactors, which seem to give him more power as he becomes gigantic (though he already had this power). He is also able to conjure up meteorites and apparently a BLACK HOLE in the final battle.
  • A Hero To His Hometown: The Koopas and his minions adore him; the rest of the world however.
  • And Now You Must Marry Me: This is his plan for Peach, since he both wants control over the Mushroom Kingdom and to be with his Villainous Crush.
  • Antagonist in Mourning: Thinking he's alone, after being defeated by Smithy, he allows himself to get emotional thinking about the "good old days". He starts reminiscing when it was just him kidnapping Peach, and Mario always coming to her rescue. He gets teary-eyed, but pulls himself together when he realizes Mario and the gang are nearby.
  • Anti-Villain: Miyamoto believes the minimum story for a Mario game is fighting a villain, beating him, and then finding out the villain isn't so bad after all.
  • Arch-Enemy: He and Mario have been fighting since they were children, with no end in sight.
  • Art Evolution: Aside from his one-time only Bald of Evil, he went from having short limbs and mostly orange skin to having longer limbs and mostly yellow skin. Incidentally, the increase in limb-length coincided with his fighting style emphasizing more melee moves rather than solely fire-breathing.
  • Authority Equals Asskicking: The king of the Koopas and by far and away the most powerful.
  • Back from the Dead: His Dry Bowser form, which was created when he actually died in the first battle of New Super Mario Bros..
  • Badass: Just look at his picture here. The fact that he's also a Former "The Guy" should be enough.
  • Badbutt: Can come off as this in the RPGs.
  • Balloon Belly: Gains a massive amount of weight after being forcefed a massive amount of food by Boos under the control of Fawful in Bowser's Inside Story. He loses the weight not long after, but can gain it back if the player returns to the area and eats some of the leftovers.
  • Benevolent Boss: His minions don't follow him out of fear; they follow him out of respect and admiration. Though that's not to say they aren't nervous about his reactions to their failure. Even his son, Bowser Jr., voiced his fear of angering his father for giving up another Grand Star. But then again, nobody in their right mind would want to piss off a giant turtle demon unless they were an ass-kicking plumber.
  • Berserk Button:
    • Just mentioning Mario's name is enough to get him riled up.
    • Harming Bowser Jr. in front of him, as seen in New Super Mario Bros. If you beat him first, will send Bowser into a rage.
  • Beware the Silly Ones: He has attempted to, and nearly succeeded in, destroying and remaking all of reality in Super Mario Galaxy, and literally punches an Eldritch Abomination to death in Bowser's Inside Story. If he didn't have Mario as an opponent, he'd be unstoppable. Cracked even has a list of 5 Reasons Bowser Is The Most Successful Video Game Character.
  • Big Bad: Of the series and entire franchise. Arguably the most famous video game Big Bad.
  • Big Bad Duumvirate: With Antasma in Mario & Luigi: Dream Team. Up until he betrays Antasma, having anticipated that Antasma was probably only going to use him, and leaves him at the mercy of the Mario Brothers.
  • Big Bad Wannabe: In the various RPGs, save the first Paper Mario and Paper Mario: Sticker Star, where he is often put into the hero position to stop the game's Big Bad. Averted in Mario & Luigi: Dream Team where he solidly outclasses Antasma for the role of the main antagonist, especially since M & L veterans have probably got used to him playing second-fiddle to the RPG villain of the week.
  • Big Beautiful Man: At least to himself.
  • Big Eater: Especially in Bowser's Inside Story.
  • Big Fun: In most of the spinoffs anyway.
  • The Big Guy: Serves as this when on Mario's team, as well as the Boisterous Bruiser.
  • Bigger on the Inside: What friend and foe alike discover if he inhales them via his vacuum breath, that they're no bigger than microorganisms within Bowser's internal anatomy.
  • Breakout Villain: Mario fought with other villains such as Donkey Kong, Foreman Spike, and other assorted baddies before Bowser showed in the franchise's most popular game. After that, he became the series' main nemesis.
  • Breath Weapon: In almost all of his appearances — but, strangely, not once in Super Mario RPG.
  • Card-Carrying Villain: He loves being evil.
  • Catch Phrase:
    • In the first cartoon series: "Koopa Pack, ATTACK!"
    • "He who koops and runs away lives to koop another day!"
    • In the actual games (especially Mario Party), "I'll remember this!"
  • Cats Are Mean: As Meowser in Super Mario 3D World.
  • Clown Car: His Clown Car in Super Mario World.
  • Cool Car: Has one in Super Mario 3D World. that looks like a mix between a classic convertible and a Hummer Dinger, using it to try and run over Mario and friends. He's so proud of it that he even introduces it with gestures that seem to say "Check out the new wheels, chumps!"
  • Curb-Stomp Battle: Almost all of his fights against someone other than Mario or Luigi are incredibly one-sided in his favor. (Rawk Hawk, anyone?) Most of these happen offscreen, though.
  • Dangerously Genre Savvy:
    • In Mario & Luigi: Dream Team. He is heavily implied to have been anticipating Antasma was just trying to use him to succeed from the very beginning, and was only waiting to get Peach, the Dream Stone and his new castle so he could kick the Bat King to the curb the moment he showed signs of malcontent. And so he chucks Antasma to the ground to be left at the mercy of the Mario Bros. while he leaves to conquer the world with his newfound power.
    • And it also shows up prior to that. After Bowser and Antasma create Neo Bowser Castle, Mario and co. correctly deduce that Bowser will attempt to kidnap Peach, so they hide her in the Dream World. However, Bowser is one step ahead of them, kidnapping Peach offscreen and replacing her with a disguised Kamek so he could smuggle monsters into the Dream World.
    • And during his fight with Giant Luigi, after Luigi uses his Hammer Chop to send him into the lava, Bowser later has his minions erect a steel wall so he can't do it again. However, he doesn't defend against hammer uppercuts.
    • And he's still showing remarkable Genre Savvy in Super Mario 3D World. When he appears at the outset of the game, he opts to capture the Sprixie Princess and completely ignores Peach this time and on top of showing a little more competence in his minions and obstacles, during the final battle with him, he finally decides to use Mario's powerups against him.
  • Deadpan Snarker: On occasion. Especially the DiC version.
  • Deal with the Devil: With Antasma. While Antasma was expecting the other way around, the devil of the deal turned out to be Bowser.
  • Defeat Means Playable: If you defeat Bowser in Puzzle & Dragons: Super Mario Bros. Edition, he will join your team.
  • Dem Bones: Dry Bowser.
  • Depending on the Writer: ...or, more accurately, type of game. The main platformer series portrays him as a legitimate threat to the Mushroom Kingdom and Princess Peach, especially in Super Mario Galaxy. The spinoffs portray him as a Dumb Muscle who is often an Anti-Hero trying to work against the game's Big Bad.
  • Despotism Justifies the Means: His motivation for attacking the Mushroom Kingdom besides imposing his rule on the world, and eventually the entire universe (besides his Villainous Crush on Peach).
  • Determinator:
    • He will never ever EVER stop until he's kidnapped Peach and taken over her kingdom.
    • He got melted to the bone once. When he returned, he was even harder to take out.
  • Did You Just Punch Out Cthulhu?: He literally punches out an Eldritch Abomination in Bowser's Inside Story.
    • In Super Mario 3D World, due to Rosalina being playable, Bowser and any one of his troops can kill her.
  • The Dreaded: Pretty much anyone other than Mario or Luigi is screwed if he attacks them (see Curb-Stomp Battle above).
  • Dracolich: Dry Bowser is a giant undead fire-breathing toothy reptile, so he's close enough.
  • Drop the Hammer:
    • In Super Mario Bros., he had an unlimited supply that he'd hurl at Mario. He also throws hammers as an attack in some of the latter games.
    • And in Mario & Luigi: Dream Team, one of his attacks is to conjure a giant hammer.
  • Dub Name Change: From King Koopa to Bowser, as mentioned above. Unlike with Toadstool, this change still endures to this day, and English-speakers will be hard-pressed to think of him as anything else. Interestingly, unlike most cases of this, his name wasn't changed from the beginning. Older fans will remember knowing him as King Koopa because of the cartoons. However, a manual for one of the older games does refer to him as "Bowser, King of the Koopas."
  • Dumb Muscle: In the RPGs. Emphasis on muscle.
  • Easily Forgiven: At the end of Super Mario Sunshine, despite having every reason to be angry at him, Bowser Jr. never holds any animosity towards Bowser for lying about his mother and is more fixated on fighting Mario.
  • Edible Theme Naming: Bowser's Japanese name, クッパ Kuppa, was named after the Japanese word for 국밥 gukbap, a Korean soup with rice. Creator Shigeru Miyamoto wanted to name him after a dish in Korean cuisine, and also had considered naming him ユッケ Yukke (after 육회 yukhoe) or ビビンバ Bibinba (after 비빔밥 bibimbap). This distinction is lost in English, where his primary name is Bowser, and even his surname is Koopa instead of Gukbap (or the pre-2000 transliteration Kukpap). The distinction is also lost in Korean itself, where he is instead localized as 쿠파 Kupa, a round-trip translation through the Japanese name. As a result of the character being named Kuppa, the word in the Japanese language is now probably better associated with Bowser than with the Korean dish, as hilariously evident in Google Translate's English translation of the Japanese Wikipedia article for gukbap.
  • The Emperor: While he's never referred to as such, Bowser is actually an emperor, as he has a massive empire that he is trying to expand and even has kings as minions.
  • Enemy Mine: In some of the spinoffs, mostly because he can't stand the notion of anyone else destroying the Mario Brothers and ruling over the Mushroom Kingdom.
  • Enraged By Idiocy: Expect this to happen whenever his underlings screw up or goof off. He then usually blames them for ALL of his schemes derailing.
  • Even Evil Has Loved Ones: Bowser is indeed a villain and he may not be a responsible father, but he genuinely loves Bowser Jr. and constantly tells him how proud of him he is. And anyone who harms him will know his wrath, unfettered and raw.
  • Even Evil Has Standards: He wants to rule over the Mushroom Kingdom, not destroy it. He even provides one of the page's quotes.
  • Evil Is Burning Hot: He has fire breath and has a general association with fiery places like volcanoes and stars. Also, he is apparently fireproof, judging by the amount of times that he got dropped in lava.
  • Evil Gloating: Bowser does a lot of this when things are going his way. A prime example is in Super Mario 3D Land when he sends Mario a letter, with a photo showing he's recaptured the escapee Princess Peach, caged up her with a bowtie, as a gift to himself, while he sits smugly in his throne room.
  • Evil Is Hammy: Getting hammier with each game
  • Evil Laugh: Players of Super Mario 64 will know it well.
  • Evil Only Has to Win Once: Bowser's plans are so destructive that Mario has to win every single time.
  • Evil Overlord: Fits this to a T. Though, as mentioned before, he's actually admired by his minions, and it's mainly the good guys that view him as this.
  • Evil Redhead: Originally just a scaly beast, Bowser gained an orange mohawk in time for Super Mario Bros. 3. He is the only redhead amongst the Koopa Clan.
  • Evil Sorceror: Bowser has showcased some magic tricks in a couple of games. In the original, he allegedly turned all the Toads into blocks. Despite his status as the dumb muscle, he gets the hang of any ancient magical artifact with ease. So far, he has wielded the Star Rod, the Vibe Scepter, the Power Stars, the Grand Stars, and many other magical items with finesse. Bowser seems to be able to use magical flames aside from regular fire breath, could turn invisible/teleport in Super Mario 64, and he shot lightning from his fingertips in the intro of Super Mario Galaxy. In Bowser's Inside Story, the Koopa King even assists his Magikoopas by throwing fireballs at their wands, amplifying their power during the Magikoopa Mob attack. Bowser seems to have at least some magical skill.
  • Evil Versus Evil: He apparently dislikes King K. Rool, as the two have bad chemistry in Mario Super Sluggers.
  • Evil Versus Oblivion: A consistent trait — Bowser has no desire for destruction, just for conquest, and in fact hates people who think they're going to destroy his world before he conquers it possibly even more than he hates Mario.
  • Eviler Than Thou: Frequently suffers from being on the receiving end of this trope in the RPGs from many of the RPG villains. However, he is this trope to Antasma, which was unexpected for both Antasma and a number of players.
  • Failed a Spot Check: Along with gravity, this is the biggest contributing factor to Bowser's defeats.
    • Placing switches that destroy his bridges in his debut, and again in Super Mario 3D Land.
    • Having a back door to his castle in Super Mario World that by-passes most of the Valley of Bowser.
    • Placing explosives around his arenas in Super Mario 64.
    • Placing a POW block on the top of his tower in Super Mario 3D World. Made worse by him standing on it.
  • Fat Bastard: Bowser's got quite a gut on him. But he's still plenty strong and depending on the game, he's still athletic as ever.
  • Fiction 500: He has at least twenty Castles.
  • Mighty Glacier: When he's playable, this is often what he is instead. Though in Super Paper Mario, he can still jump as high as Mario and Peach.
  • Mirror Boss: In the final battle with him in Super Mario 3D World, he uses a Super Bell to turn into Meowser and later uses a Double Cherry to continue the assault when beaten the first time.
  • Mix-and-Match Critters: As mentioned under some other tropes, Bowser is mostly turtle-like with some ox-like features retained from previous concepts, but also has some features of crocodile, dragon and dinosaur.
  • Modest Royalty: Unlike most other rulers in the Mario games, he doesn't wear a crown or anything else that suggests he's a king. (Then again, does he really need to?)
  • Mordor: His kingdom.
  • Never My Fault: In Mario & Luigi: Dream Team. When he, Kamek, and the Elite Trio are seen retreating on the Kooopa Clown Car, he blames his defeat on Antasma.
  • Non-Mammalian Hair: He's a turtle-like creature with red hair tied in a ponytail.
  • Nigh-Invulnerability: He never seems to be (seriously) harmed when he gets thrown into lava (which happens very often, by the way). Outside of RPGs, he is typically immune to standard forms of attack. The only time he did get hurt by lava was in New Super Mario Bros., where his skin melted off! He actually put up a fight after that, even though at that point he was a skeleton! Super Mario Galaxy reveals that not even a red giant can permanently kill him.
  • Not Worth Killing: He could soundly defeat Mario and the Toads at the Beginning of Super Mario Galaxy 2, but given his new gigantic size, considers wasting anymore time on such insects beneath him. He simply wants to rule the universe. At the final fight, he's so fed up with Mario confronting him over and over, he tells him to go get lost in a warp pipe.
  • Not Zilla: Bowser's appearance after some of the early games bears some resemblance to Godzilla, and things such as his rampage through Tokyo in SimCity and the giant battles in Bowser's Inside Story may even pay homage to this.
  • One-Winged Angel:
    • You would think that a giant turtle monster like Bowser wouldn't have this (other than just simply making himself larger, obviously), but in the Smash Bros games, he turns into an even larger, more demonic looking turtle monster named Giga Bowser.
    • He also goes One-Winged Angel in the final battle of Mario & Luigi: Dream Team, where he uses the Dream Stone to transform into a giant, glowing, rainbow-colored version of himself adorned with Dream Stone-like shards on his head and stomach.
    • And again in Super Mario 3D World He uses a Super Bell to transform himself into a tiger-like version of himself called Meowser.
  • The Only One Allowed to Defeat You: He wants to be the only one to defeat Mario. And the only one to kidnap Peach. (Or the only one to kidnap Mario and defeat Peach.) He also doesn't like the idea of someone more powerful than him taking over the Mushroom Kingdom before he does. This is what typically leads to the Enemy Mine situations when he teams up with the plumbers.
  • OOC Is Serious Business: After being defeated by Mario the end of Super Mario Sunshine, Bowser is forced to admit to Junior that he lied to him about his mother. It's the only time in the whole series where Bowser shows genuine regret for his actions.
  • Our Dragons Are Different: Often mistaken for a dragon, he's actually a cross between an ox and a turtle with draconic features. Bowser was originally intended to be more of an ox, but ended up looking more turtle. The ox part is still visible in his face.
  • Papa Wolf: Despite his villainous antics, pretty much any incarnation with his Koopalings presents him as a rather caring father (in his own twisted manner, anyway). Notably, in New Super Mario Bros., Bowser unleashes a maelstrom of fireballs at you should you defeat Junior first.
  • Parental Abandonment: As a child, he was referred to as "Prince Bowser", but no mention of his parents is made. The only parental figure he's shown to have is Kamek.
  • Pet the Dog: He's not a very nice guy, but he seems to genuinely care about his troops, his son, and Peach. Landing on Bowser Spaces in Mario Party is normally bad news as the Koopa King nearly always finds a way to screw over the player(s), but Bowser seems to have a charitable side, and takes pity on anyone without any coins or stars, and will give them some spare change.
  • Pick on Someone Your Own Size: Bowser is easily the biggest character in the entire franchise, and older than the short and portly plumber, yet is absolutely obsessed with beating Mario and stealing Peach from him.
  • Power Copying: In Mario & Luigi: Dream Time, Bowser hates it when Luigi transforms into a giant like him. Transforming into a giant is his style and his alone.
  • Pragmatic Villainy: He does side with the Mario Bros. in the spinoffs, but only when the Mushroom Kingdom is not being taken over by him, or when his kingdom is taken over.
  • Rated M for Manly: In his more competent appearances, especially Bowser's Inside Story. Regardless of competence, Bowser always seems to think of himself this way.
  • Reality Warper: In Mario & Luigi: Dream Team, he inhales the fragments of the Dream Stone after it was destroyed by Dreambert and Starlow and becomes Dreamy Bowser. In this form, he can do whatever he wants. He can conujre objects such as food, a hammer, or an airship. He can grow to tremendous size. He can create duplicates of himself. He can summon enemies. Nothing is sacred to him.
  • Recurring Boss: Frequently.
  • Red Eyes, Take Warning: Has red eyes and is not to be taken lightly.
  • Satanic Archetype: Bowser is sometimes called Great Demon King and his kingdom, especially in Super Mario Bros. 3, resembles Hell. It's a case of In Name Only, though, in that he's just portrayed as simply an Evil Overlord. However, in Super Mario Galaxy and Super Mario Galaxy 2, he arguably becomes this, as he wants to not just take over the entire universe, but actually destroy it and recreate it as his own and rule it for eternity, starting with his own created galaxy and opposes Rosalina who is implied to be God or at least a Physical God in the former, and even arguably becomes a God of Evil in the latter, or at least as close to it as possible and tries to devour the universe to make himself more powerful. Both times, he even comes close to succeeding. And in Mario & Luigi: Dream Team, he ultimately proves to be the devil in the deal between him and Antasma. It seems like he decided to live up to that title in those games.
  • Screw This, I'm Outta Here!: In any of the Mario Party games where you land on a Bowser space, he'll offer his own demented versions of mini-games (read: most of them involve him taking coins from the players). Occasionally, the selector will land on 100-Star Present or 10,000-Coin Present. If this happens, Bowser will do nothing for a few seconds and then run off screen.
  • Shock and Awe: An attack in Paper Mario 64 where he uses the Star Rod to call down lightening bolts.
  • Shockwave Stomp: Another favorite attack of his.
  • Single-Target Sexuality: To Peach. What makes Bowser interesting is that he genuinely loves Peach. Granted it's a warped and twisted love because he's evil, but he loves Peach for who she is, and not some sexual attraction. He shows no interest in anyone else; Daisy and Rosalina are arguably more attractive than Peach and the latter is far more powerful, but Bowser doesn't care. He only has eyes for Peach, he wants Peach all to himself, and hates Mario for winning her affections.
  • Skewed Priorities: He has two main goals as a villain: To take over the universe, and to marry Princess Peach. He could probably accomplish the former pretty easily if he avoided getting Mario's attention by ALWAYS putting the kidnapping of Peach first.
  • Slouch of Villainy: Look at his picture.
  • Sorcerous Overlord: Downplayed. In the original Super Mario Bros, he allegedly turned all the Toads into blocks. However, while he's mostly reliant on his physical strength, recent modern games do show that he indeed knows how to use magic and isn't afraid to use it to augment his abilities (or to make a quick getaway).
  • Spanner in the Works: Twice within the Mario & Luigi series, naturally while launching another plan to kidnap the Princess. The problem comes from the Princess in question being a decoy in both instances, throwing off the plans of the heroes in Superstar Saga and then the villains in Partners in Time respectively.
  • Spell My Name with a "The": At least, according to the instruction manual for the Game & Watch version of SMB.
  • Spikes of Villainy: His shell, horns, and bracelets.
  • Staying Alive: It seems almost nothing can kill this guy.
  • Stripped to the Bone: His first appearance as Dry Bowser.
  • You Got Guts: In Mario Party 4 he'll praise anyone who approaches his giant-self in anything smaller than Mega form, right before incinerating them for their childish impudence.
  • You Have Failed Me: Kid-friendly variation: In one of the Mario Party games, when Bowser is defeated, he'll punish the Koopa Kids with not allowing them to play with their Mario action figures for their failure to beat Mario.
  • Younger Than They Look: Mario and Luigi are said to be 26 years old, and the Yoshi's Island series and Mario & Luigi: Partners in Time show that Bowser was also a baby at the same time they were, though the fact that he can talk implies that he's at least a few years older. Taking this into account, Bowser is likely only 28-30 years old.
  • Your Size May Vary: From being no bigger than Mario to being able to swallow him whole. According to the official height chart, he's supposed to be about eight and a half feet tall, but he's usually larger.

     Bowser Jr. 
"Someday, when I'm bigger... I wanna fight that Mario again!"
"Leave my Mama alone, you bad man! I won't let you take Mama Peach away!"
Voiced by: Dolores Rogers (2002–2007), Caety Sagoian (2007–present)

Bowser Jr. (known in Japan as Koopa Jr.; full name presumably Prince Bowser Koopa Jr.) is heir to the throne and still a (very clever, very nasty) hatchling. He's a rotten little schemer who wants Princess Peach to become his mommy. He first appeared in Super Mario Sunshine disguised as Mario in order to get him sent to prison, and when that failed he personally kidnapped Princess Peach himself, revealing his true form. Since then, Bowser Jr. has become his father's right hand man and most reliable soldier, having successfully kidnapped Princess Peach more times than anyone except Bowser himself.

Tropes associated with Bowser Jr.:

  • Affectionate Nickname: His father typically just calls him 'Jr.' or 'son'. Mario & Sonic 2012 reveals that his minions call him 'little sire', and the 3DS Super Smash Bros. audience calls him "BJ" in their encouragement chants.
  • Art Attacker: Thanks to his Magic Paintbrush, he can create enemies out of paint.
  • Attack Its Weak Point: In boss fights where he appears in the Koopa Clown Car or some other giant machine, the weak point tends to be Bowser Jr.'s cockpit. This has carried over to Super Smash Bros. 4, where hitting Bowser Jr. will do more damage than hitting the Junior Clown Car.
  • Autobots, Rock Out!: A villainous example; with a couple of jazz exceptions, all of Bowser Jr.'s leitmotifs are either rock n' roll based or involve an electric guitar.
  • Badass Bookworm: Quite handy with machinery, just like Bowser. While admiring the ghost ship stage in Fortune Street, he casually mentions he designs his own mechas, and his final smash trophy in Super Smash Bros. Wii U outright states that he's brainer than his father.
  • Badass Driver: Junior has controlled a variety of machines throughout his villainous career and is a remarkable pilot for his age. In particular, he’s so comfortable flying his Clown Car that he’s frequently seen standing on its rim without fear of falling off.
  • Badasses Wear Bandanas: One of the reasons he drew fangs on his bandana is to make himself look more intimidating when he wears it over his mouth. However, he's worn his bandana like this less and less ever since he mastered how to breath fire.
  • Bad Boss: In his Boss Battle in Super Mario Galaxy, Bowser Jr.'s ship's weaponry not only damages Mario, it kills any Mook unfortunate enough to get between the Koopa prince and his prey.
  • Bait-and-Switch Boss: His final appearance in Galaxy, which he fires meteors to try and stop Mario's ascent.
  • Barrier Warrior:
    • The Magic Paintbrush can create an orange, gelatinous wall of caustic paint that's immune to the Paintbrush's normal weakness of water, but can still be erased with Yoshi saliva.
    • In Sticker Star, he'll activate a domed barrier over his Clown Car to protect himself.
    • In the final battle of Puzzle & Dragons: Super Mario Bros. Edition, he'll cast defensive buffs to shield himself and the Bowser + Koopalings combo. On top of that, his separate life bar, light-element status, and tendency to heal soaks up a lot of damage that would normally be aimed at his father and friends.
  • Bearer of Bad News: His role in Mario Party 9, where he updates his father on the player's (successful) progress and Bowser's (failed) defenses, until the final board where he takes on Mario personally.
  • Big Bad: Of Sunshine, being the instigator of the plot, and the main threat.
  • Big Guy, Little Guy: The little guy to his father's big guy.
  • Bizarre and Improbable Ballistics: In all of his Mario Tennis appearances, he's classified as a Tricky-type character, meaning all his shots are imbued with a very high amount of curve. Inverted in his Mario Golf appearances, where his shot is classified as perfectly straight and low flying.
  • Black Bead Eyes: Just like Baby Bowser, Bowser Jr. has small, beady black eyes, although his eyes usually have a pupil-like shine to them that Baby Bowser's doesn't. Just like Bowser’s red eyes didn’t become apparent until he grew up, it’s unknown what Junior’s actual eye color will be when he's older.
  • Bonus Boss: In Mario and Luigi: Dream Team.
  • Bratty Half-Pint: The premiere brat of the Mario series, Junior loves being a headache to the people of the Mushroom kingdom.
  • Breath Weapon: Initially untrained and undeveloped at fire breath, as he attempted to do so in Mario Superstar Baseball with only a weak ember, but mastered it in New Super Mario Bros. Wii, where it homes in on the players and sets the floor ablaze on contact. While he never actually attacks with it, Dream Team shows he can now breathe an entire stream of fire.
  • Breaking the Fourth Wall: Bowser Jr. breaks the fourth wall several times through out the New Super Mario Bros. series, usually as little self aware pivots to the screen done for comedic effect. However, the most notable instance is the very last scene in the original New Super Mario Bros., where he turns to the players and snaps his jaws.
  • Brilliant but Lazy: In the physical sense; he's clearly shown he's capable of acrobatic feats, impressive running speed, and enough physical stamina to keep ahead of Mario on foot, but he generally prefers to cruise around in his Clown Car due to laziness. This is especially evident in Mario and Sonic Olympics 2012, where it takes goading and encouragement from his minions to get him to begin training, but becomes very successful when he finally does start applying himself.
  • But Thou Must: In Mario Party 9, when the player lands on a Bowser Jr. space and spins for a Bowser Jr. minigame, he'll ask if you're sure you want to play the one that you end up landing on. If you say "yes", you'll play the minigame, and if you say "no", he'll still make you play that minigame.
  • Card-Carrying Villain: While he doesn't display it as frequently as his father, Junior brags about his 'evilness' with the same kind of relish, particularly in games where he's competing against people like Fortune Street and Mario: Super Sluggers.
  • The Chase: In virtually all his appearance where he plays The Dragon or the Big Bad, it will involve him leading Mario on a giant chase.
  • Cheerful Child: When he's not trying to kidnap her, Bowser Jr. tends to act this way whenever he's around Princess Peach.
  • The Chessmaster: One of the reasons he's been so successful at capturing Peach has been his ability to either neutralize or distract Mario. In his first appearance, he commits various crimes disguised as Mario in order to get him thrown into prison, and in New Super Mario Bros. he causes a diversion in the castle while Mario and Peach are out on a walk to get the two separated.
  • Color-Coded Elements: His magic brush is capable of creating Fire Graffiti and Electric Graffiti by changing the color of the paint.
  • Confusion Fu:
    • He tends to mix up his attacks to throw the Bros. off, and he shows a surprising ability to adapt to a bad situation rather quickly.
    • In New Super Maro Bros. Wii, the final battle has him pick over his clown car and his dad's; the latter of which was chosen.
  • Cool Car:
    • The Junior Clown Car is a miniature version of his dad's clown car, complete with a multitude of personal on board weapons and a face so expressive it borders liveliness.
    • In Double Dash, Bowser Jr.'s personal car is the Bullet Blaster, one of the fastest lightweight cars in the game and easily the meanest looking.
  • Crowd Chant: He, like the other fighters, has an audience cheer in Super Smash Bros. when a someone playing as him does particularly well. They don't call out his entire name, but simply shorten it to "BJ" in the 3DS version and "Junior" in the Wii U version.
  • Cryptic Background Reference:
    • At the end of Super Mario Sunshine, the only clue we get to whoever his mother may be is that he knew it wasn't Peach from the very start. He never states whether this means he discovered who his actual mother is or not, and he doesn't seem to press the matter any further with his dad (who seems extremely happy to avoid talking about it any further). He continues to call Peach 'Mama' in later appearances despite knowing full well she isn't.
    • He states that 'a strange man in a white coat' gave him his Magic Paintbrush in Sunshine. It is very heavily implied that the old man in question is professor E. Gadd, but what actually happened between the two and what relationship they have, if any, has never been followed up on.
  • Cute Little Fang
  • Defeat Means Playable: In Puzzle & Dragons: Super Mario Bros. Edition, just like his father and Princess Peach, he will join your team if you beat the game.
  • Doomsday Device: Invoked with his "Boomsday Machine" in Super Mario Galaxy 2.
  • The Dragon: In most of his appearances, Bowser Jr. has been his papa's main backup. Sometimes, he and Kamek work together as Co-Dragons.
  • Dragon Ascendant: After his father becomes a member of the undead in New Super Mario Bros., Jr. becomes the leader of the Koopa Troop, until he resurrects his father.
  • The Dreaded: To Toads; since Bowser Jr. spends so much time infiltrating the Mushroom Kingdom, Toads seem to fear him just as much as they do Bowser. This is later justified when he stuffs Toads into containers for sheer amusement in New Super Mario Bros. Wii.
  • Drop the Hammer: Bowser Jr., like many in the Mario games, seems to particularly favor them; he’s built at least two giant mechs that use them to attack people, not counting his Junior Clown Car in Super Smash Brothers which has two wrecking balls, a giant nail hammer, and a squeaky mallet.
  • Dual Boss:
    • Junior frequently battles alongside his father in final boss fights, usually as small but fast supporting fighter. He does this in Sunshine, New Super Mario Bros., and New Super Mario Bros U.
    • In Puzzle & Dragons: Super Mario Bros. Edition Junior is a separate entity from the Bowser + Koopaling combo, with his own life bar and attacks. His HP is comparatively the smaller of the two, but his light-element status perfectly complements the combo’s dark-element status by covering each-other’s vulnerabilities, and Junior casts defensive buffs and healing spells to effectively double the amount of damage the player needs to dish out to win. Finally, if Junior is defeated, the combo will sometimes use a revival spell to bring him back to full health.
  • Easily Forgiven: He never does seem angry at his father for lying to him about who his mother is. Instead, he just seems fixated on the idea of fighting Mario again.
  • Enfant Terrible: He's the son of an Evil Overlord who inspires to be like his dad.
  • Establishing Character Moment: He first appears on a giant mech claiming that he's there to rescue 'mama' Peach from Mario.
  • Everything's Squishier with Cephalopods: He commands two different Giant Squid monsters in the series: Gooper Blooper in Sunshine, and King Caliente in Galaxy.
  • Even Bad Men Love Their Mamas: Played With. Bowser Jr. has shown time and again that he’s fond of Princess Peach, regardless of whether she’s his biological mother or not. Aside from encouraging her to partake in vacation activities with him in Sunshine, she’s the only character other than Bowser that Junior speaks nicely to in Mario Sluggers, and in Fortune Street he admits that he doesn't mind spending a little extra money at a shop (within reason) as long as it’s hers. And yet, he still has no reservations about kidnapping her time and again.
  • Even Evil Has Loved Ones: No one in the entire world is more important to him than his father— to Bowser Jr., Bowser is the best and strongest at everything, and he'll get angry at the mere suggestion to the contrary. He also seems to have an intense emotional bond with Princess Peach, and wants her to be his mother just as much as Bowser wants her to be his wife. He even revives his own dad in New Super Mario Bros.
  • The Evil Prince: The heir to his father's throne.
  • Fiery Red Head: Surprisingly downplayed compared to his father. Even as a child, Bowser had an extremely short fuse and was angry more often than he was not. While Bowser Jr. certainly has a temper, he's more apt to be smug or exasperated than angry and is often more level headed than the adult Bowser.
  • Final Boss: While he never plays this role by himself, he often shares it with his dad. This is the case with Super Mario Sunshine, New Super Mario Bros., and New Super Mario Bros. U.
  • Forgotten Phlebotinum: Despite its immense potential for destruction, Bowser Jr. never again uses the Magic Paintbrush in any of his evil schemes after Sunshine, except for a minor Continuity Cameo in his bonus boss fight in Dream Team, where he uses it for tickling people, and his Final Smash in Super Smash Bros. He does often use it for sports, though.
    • He also never again uses a magical disguise on par with his Shadow Mario bandana.
  • Fragile Speedster: Easily as fast and agile as the Mario Brothers, but doesn't have the raw strength to back it up. This shows in his boss battles (when he isn't piloting some sort of robot), and his stats in the spin-off games. For example, in Mario Kart: Double Dash!!, Junior's personal kart is the fastest but also the lightest; and he's classified as a Speedy character in Mario Sports Mix.
  • Full-Body Disguise: The Shadow Mario disguise completely alters Bowser Jr.'s body shape and color tone to the point that it'd be impossible for someone to guess it was him if they didn't know about the disguise beforehand.
  • Gadgeteer Genius: One of Bowser Jr.’s major calling cards is his affinity for machines, and is the most extensive gadget user in the Mario universe next to Professor E. Gadd. This generally includes things like mechs, vehicles, and robots to use in his battles against Mario, some of which he apparently designs himself. However, the spin-offs show he’s also attracted to less sinister tech as well, like slot and pinball machines.
  • The Gambler: A rather bizarre but noticeable tendency in some spin offs have been to give him a casino bent, such as the slot-machine stage gimmicks in 3-on-3 and Sports Mix, as well as his dice based boss fight in Mario Party 9. These instances tend to also come with casino-style big band jazz.
  • Generation Xerox: Bowser Jr.'s appearance is pretty much identical to his father when he was a kid, and they share many personality traits. Bowser Jr. does seem more competent of a villain than Bowser was at his age.
  • Genius Bruiser: You know the Jumping Out of a Cake method of capturing Princess Peach in New Super Mario Bros. Wii? Well, according to the Japanese site, that was planned by Bowser Jr. His debut scheme in Mario Sunshine is one of the most complex evil schemes in the series.
  • Giant Space Flea from Nowhere: In Dream Team.
  • Giggling Villain: He giggles a lot when not imitating his dad's Evil Laugh.
  • Glory Seeker: Particularly, glory in the eyes of his dad, which he craves to a fault. In Mario and Sonic Olympics 2012, it's shown he can be made to do nearly anything by simply telling him ‘I bet your father would be really impressed’. In fact, this works so well that at one point he bets his freedom on a race with Metal Sonic just because a minion suggested that his father would be impressed if he won.
  • Go-Karting with Bowser: In the Mario Kart series he goes karting with the other characters. Guess who his default driving partner is in Double Dash?
  • Gotta Catch 'Em All: In Sticker Star his main objective seems to be hunting down rare stickers.
  • Green-Eyed Monster: His villainous acts in Mario Super Sluggers stems from intense jealousy that Mario and friends have their own baseball island to play on.
  • Happy Dance: Bowser Jr. often does a little hop from one foot to the other when he's excited or energized. In Mario & Sonic at the Winter Olympics, his father has to motion for him to keep still when he does this during the opening ceremony.
  • Healing Factor:
    • Through out his boss battles in Sticker Star, he'll start to heal himself once his health gets too low.
    • In the final boss fight of Puzzle & Dragons: Mario Edition, he'll often heal both himself and the Bowser + Koopalings combo whenever he or they have low HP on his turn.
  • The Heavy:
    • In Sunshine. His dad is the Final Boss, but Bowser Jr. does all the work.
    • This is generally his role in plots where he's involved, and takes up this role again in every New Super Mario Bros game except for 2, which he wasn't present in.
  • Hero Worship: Inverted. Bowser Jr. adores his evil father and even states once that his dad is "braver than any dumb hero". That said, in Mario Party: Island Tour his father does mention that Bowser Jr. often fantasizes about playing the hero himself.
  • Humongous Mecha: One of his favorite and most well known tactics, Bowser Jr. has used a variety of giant robots and mechs in his boss fights, among them being Mecha-Bowser, Megaleg, Megahammer, and the Boomsday Machine. He also has a stage in Super Mario Galaxy named Bowser Jr's Robot Reactor.
  • Hyperspace Arsenal: His Junior Clown Car, appropriately enough, seems to have unlimited item space for bombs, mecha-koopas, and other weapons.
  • Identical Grandson: Bowser Jr. looks quite similar to Bowser when he was young. There are consistent differences in the shape and proportion of their nose, ponytails, and eyebrows, but these are fairly subtle. The only major differences seems to be that Bowser Jr.'s bandana typically has drawn on fangs as opposed to the white bandana Baby Bowser favors, and Bowser Jr. only has a visible fang on the left side of his mouth while Baby Bowser has one on both sides.
  • Improbable Power Discrepancy: In his Bonus Boss battle in Dream Team, he is somehow a more powerful boss than his own dad after absorbing the Dream Stone and becoming a Reality Warper.
  • Improbable Weapon User: The Magic Paintbrush and the Junior Clown Car. Manages to play it straight and invert it simultaneously in Mario Super Sluggers by using the Magic Paintbrush as a baseball bat. (In Mario Superstar Baseball, he just had a spiky, metallic bat, instead.)
  • Informed Attribute: In Mario Party DS, it's stated that he has a hidden lonely side, but aside from want for a mother, he's never really displayed or expressed any kind of loneliness.
  • Interpretative Character: Again, in the physical sense. His Competitive Balance status between spin-offs varies wildly between titles: he's balanced in Mario & Sonic Olympics, offensive in Sluggers and Strikers, speedy in 3-on-3 and Sports Mix, technical in Mario Golf, tricky in Mario Tennis, and a Lightning Bruiser in Smash Bros.
  • Intimidation Demonstration: He attempts this in his away-team introduction in Mario Strikers: Charged, but (rather adorably) falls short.
  • Jack of All Stats: In the Mario & Sonic Olympics series, he's classified as a Balanced-type character.
  • Jazz: Going along with his frequent gambling themes, a lot of his spin-off music is dark, casino-style jazz, such as in Mario Party 9, Mario Hoops 3-on-3, and Mario Sports Mix.
  • Jumping Out of a Cake: Along with the Koopalings in New Super Mario Bros. Wii.
  • Junior Counterpart: To his father.
  • King of Games: Junior brags that he's a pro at pinball in Mario Party DS, to the extent that Bowser is perfectly fine with letting him run the pinball stage in story mode. However, since this is a stage and not an actual pinball game, we never actually see if Junior is as good as he says he is.
  • Leitmotif: Has one in the Super Mario Galaxy series, as well as Mario Party 9 and ''Paper Mario: Sticker Star.
  • Le Parkour: In his first appearance, Jr. proved himself to be fairly acrobatic while disguised as Shadow Mario, able to keep just out of reach of Mario in the city streets of Isle Delfino.
  • Lightning Bruiser: In Super Smash Bros. He's tied with Charizard for the fourth heaviest character in the game, racks up damage quickly, takes less damage when the Clown Car is hit instead of Jr. directly, and is decently fast for a character of his weight class.
  • Like Father, Like Son: Not only does he look just like his papa, but they share the same goal: kidnap Peach and crush Mario. Their motivations, however, seem different. For Bowser, defeating Mario is a personal matter, while Bowser Jr. sees defeating Mario as something that would make his dad proud.
  • Luke, You Are My Father: Bowser Jr. declares that Peach is his mother, an idea that he got from his father. While this is a lie, Bowser Jr. knew all along that Peach wasn't his mother, but still wanted to kidnap her because he wishes she might act like his mother.
  • Magic Versus Science: On the opposite end of the scale from his father: while Bowser's been more frequently seen using magic, Bowser Jr. has more frequently been shown to use machines. This is perhaps best exemplified in that Bowser and Koopalings have all been shown using magic wands at some point in their lives, while the closest equivalent that Bowser Jr.’s ever used is the Magic Paintbrush, which is one of E. Gadd's inventions.
  • Magitek: The Magic Paintbrush uses E. Gadd's technology to create magical paint.
  • Make Me Wanna Shout: His Sonic Roar in Mario Strikers Charged.
  • Megaton Punch: In New Super Mario Bros. Wii U it was first revealed that Junior had a pair of boxing glove arms installed on his clown car. It's since become a staple weapon of the vehicle, appearing in several of his attacks in Super Smash Brothers 4 as well as in Mario Party 10 as a Bowser Jr. Space penalty.
  • Mighty Glacier: In both the Mario Sluggers and Mario Strikers series, he's a high-offense character with low speed.
  • Missing Mom: He himself acknowledges that Peach is not his mother at the end of Super Mario Sunshine, yet does not pursue the issue any further than that. He does, however, still refer to Peach as "Mama Peach" in Super Mario Galaxy, implying he wishes she could become his stepmother.
  • Modest Royalty: Just like his dad, he doesn't wear anything to suggest he's a prince.
  • Morality Pet: To Bowser. While it's hinted he may not be a very responsible father, he does clearly love Bowser Jr. very much, and constantly tells him how proud he is of him.
  • More Dakka: Of the enemies seen assisting Bowser Jr., the two he seems to favor the most are Bullet Bills and Bob-ombs. His Clown Car in Super Smash Brothers also comes equipped with a massive cannon.
  • Muck Monster: The goop produced by the Magic Paintbrush spawns small sludge monsters that will attack Mario if he gets too close.
  • Never My Fault: A trait he shares with his dad. While he's never blamed his minions or his machines for his failures, he has blamed Mario and friends for 'picking on him' in response to his shenanigans in the Mushroom Kingdom. He also refuses to believe Mario keeps getting the best of him fairly in Sunshine, and tells him he's only able to get as far as he does because of FLUDD.
  • Ninja Brat: His preferred method of getting at Peach isn't to storm the castle barricades, but to sneak in and then grab her at the right opportunity, usually with his bandana drawn up to cover his face. It helps that he's a lot smaller and faster than his dad.
  • Non-Mammalian Hair: A turtle with red hair tied in a ponytail. like father, like son.
  • Overlord Jr.: He's Bowser's son and the Prince of the Koopas.
  • Parental Substitute: Toyed with; although it's clear at the end of Sunshine that Bowser Jr. understands Peach isn't his real mother, he seems to desperately wish that she would play some kind of motherly role in his life. Peach herself does not see their relationship as this; however, in Fortune Street she often criticizes the way Bowser is raising him, hinting that she at least cares somewhat about his wellbeing.
  • Person of Mass Destruction: In Super Mario Sunshine, he manages to cause considerable collateral damage to Isle Delfino's infrastructure, ecosystem, and way of life... with nothing but a magic paintbrush.
  • Poisoned Weapon: The paint that the Magic Brush produces is highly toxic, and can be imbued with caustic or elemental properties that will damage Mario on contact.
  • Portal Door: One of the Magic Paintbrush's abilities is the power to create 'color portals' out of the Shadow Mario's stylized M insignia.
  • Reality Warper: The power of the magic brush isn’t in its ability to be used as a direct weapon, but in its ability to create allies, warp landscapes, alter the properties of objects, and create elemental energy. If fact, if it weren't for it’s Weak Sauce Weakness of pressurized water, it might just be the most powerful piece of technology yet shown in the Mario universe.
  • Reclining Reigner: He strikes this pose after his break-dancing home entrance in Strikers: Charged and if he gets second or third place in Mario Party: Island Tour, probably to look cool and aloof.
  • Recurring Boss: In most appearances, though his tactics usually change considerably.
  • The Reveal: It's at the end of the fight with Mecha-Bowser in Mario Sunshine that Bowser Jr., in his first ever appearance, reveals he was Shadow Mario all along, and had been masquerading as Mario to get him framed for the crimes he committed so he'd be thrown in jail.
  • Riddle for the Ages: Who is Bowser Jr.'s biological mother? Does he himself know? If not, why hasn't his father told him? Or, when one remembers that babies in the Mario world are delivired by storks, does he even have a biological mother?
  • Royal Brat: Surprisingly inverted. Taking after his dad, the few times Bowser Jr. has been seen conversing with his minions shows him treating them rather well. Although, he does get annoyed at them if they keep reminding him about his size.
  • Scarf of Asskicking: Had one since his debut in Sunshine. It was part of a disguise in that game, but nowadays it's just something he wears.
  • Screw This, I'm Outta Here!: After watching his super-sized father's melodramatic defeat at the hands of Mario in New Super Mario Bros. U, Bowser Jr. decides to simply give up and jump into the ravine along with him.
  • Secret Identity: Of Shadow Mario... in Sunshine at least. The identity of Shadow Mario whenever the two go golfing is less clear.
  • Sentient Vehicle: While Bowser’s Clown Car has emoted as well, the Junior Clown Car has been so expressive that it’s beginning to be implied that it may have some degree of sentience. This is further backed in Smash Brothers 4 when the alternate Koopaling all have the mass-production model Clown Cars with robotic eyes while his has living eyes.
  • Sky Pirate: Whether in the Bowser-ships in the Galaxy series or his own cannon-armed personal Junior Clown Car, Bowser Jr. has often taken this role as his villainous motif. The bandana enhances the effect.
  • Smug Smiler: Very rarely is he ever seen without a self-confident little smirk on his face.
  • The Southpaw: In most sports games, he's depicted as being left handed.
  • Spikes of Villainy: Just like his dad.
  • Spoiled Brat: His father spoils him rotten by giving him all the toys and gadgets he could want.
  • Storming the Castle: Bowser Jr. ironically has one thing in common with Mario: they're both very good at infiltrating enemy castles. Of course, Mario typically infiltrates Bowser's castle to rescue Princess Peach, while Bowser Jr. infiltrates Mushroom Castle to kidnap her.
  • Street Urchin: His original appearance in Sunshine and some character ornamentations in the spin off games tend to give him an urban hoodlum slant. His painted bandana, love of graffiti, and street-themed sports arenas are among these.
  • Suddenly Voiced: Inverted. In Sunshine, Bowser Jr. for some reason actually spoke like everyone else in the game, but from Galaxy onwards, he reverted to dialogue boxes and Voice Grunting like everyone else.
  • Surf Rock: His entrance and victory fanfare in Mario Strikers: Charged.
  • Suspiciously Similar Substitute: His design is incredibly similar to Baby Bowser in Yoshi's Island, retroactively becoming nearly identical.
  • Swiss Army Weapon: In Super Smash Bros. 4, his signature Junior Clown Car comes equipped with drills, boxing gloves, mecha-koopas, a go-kart form, a tongue, a cannon, buzz saws, wrecking balls, mechanical claws, a giant fork, a self destruct mechanism, and a bladed propeller.
  • Thememobile:
  • Thicker Than Water: Because of Bowser's "death" in New Super Mario Bros., Bowser Jr. technically becomes the acting Koopa King, if just for a short while. In the end, however, he's more concerned with getting his dad back than taking the throne, and revives Bowser with a magic potion.
  • The Trickster: Bowser Jr. favors tricks and sneakiness as opposed to his father’s more physical approach. This seems to be one of the ways he fundamentally differs from his father, as every depiction of Bowser as a child shows he preferred a more physical attack pattern even when he was Junior's age.
  • Turtle Power: Again, son of the Koopa King.
  • Undying Loyalty: Junior deeply loves his father, and as shown in New Super Mario Bros., remains loyal to him even after his apparent death.
  • Unexpected Character: OK, under normal circumstances, he would never be unexpected. However, being the Bonus Boss of Dream Team came right out of nowhere, with no foreshadowing whatsoever and having never being mentioned beforehand.
  • Vehicular Turnabout: You can hijack the Junior Clown Car in New Super Mario Bros. U, and can use it against him and Bowser. In Dream Team you can jump into his Clown Car whenever he gets out and chase him down, throwing various kinds of junk at him for damage. As this is the only chase sequence in the game where it's YOU chasing down the boss, who has to avoid YOUR attacks this time, it's immensely satisfying.
  • Video Game Stealing: In his secret boss fight in Dream Team, every time he's hit with a Bro attack, he'll jump out of his car and steal the bro item away. The items can be gotten back by either damaging him enough, jumping into his Clown Car while he's out of it, or winning the match.
  • Weaponized Car: Even more so than the original Koopa Clown Car, his Junior Clown Car is armed to the teeth with a large variety of weapons and transformations.
  • "Well Done, Son!" Guy:
    • One of his most defining characteristics is his intense desire to make his father proud of him, and he'll go to absolutely tremendous lengths to do so. It's played with, though, in that Bowser is already extremely proud of his son— Bowser Jr. just wants to keep making him proud.
    • In the 3DS version of Mario & Sonic at the Summer Olympic Games 2012, Bowser Jr. challenged Metal Sonic to a race, on the condition that if Bowser Jr. lost, he’d become Dr. Eggman’s slave. What did Bowser Jr. want if he won? Only for Eggman to tell his dad about how awesome he was.
  • What a Drag: It's often Bowser Jr.'s job to drag his dad back home after getting pummeled by Mario. In New Super Mario Bros. U, it went one step further when he ended up having to fly his father AND the seven Koopalings home in his tiny and very overworked looking Clown Car.
  • Your Size May Vary: Just like Bowser, his size tends to vary from game to game. In some games like Super Mario Sunshine, he's roughly the same size as Mario. In other games like Super Mario Galaxy, he's taller than Peach.

    The Koopalings 
"We just love being mean!"
Larry voiced by: Masaharu Satō (original video animations), James Ransken (The Adventures of Super Mario Bros. 3 and Super Mario World), Lani Minella (2009-2014), Michelle Hippe (2014-present)
Morton voiced by: Miyako Endō (original video animations), Dan Hennessey (The Adventures of Super Mario Bros. 3 and Super Mario World), Lani Minella (2009-present)
Wendy voiced by: Miyako Endō (original video animations), Tabitha St. Germain (The Adventures of Super Mario Bros. 3 and Super Mario World), Lani Minella (2009-2014), Ashley Flannagan (2014-present)
Iggy voiced by: Masaharu Satō (original video animations), Tara Strong (The Adventures of Super Mario Bros. 3 and Super Mario World), Mike Vaughn (2009-present)
Roy voiced by: Naoki Tatsuta (original video animations), Gordon Masten (The Adventures of Super Mario Bros. 3 and Super Mario World), Don Falcone (2009-present)
Lemmy voiced by: Naoki Tatsuta (original video animations), Tara Strong (The Adventures of Super Mario Bros. 3 and Super Mario World), Lani Minella (2009-present)
Ludwig voiced by: Naoki Tatsuta (original video animations), Michael Stark (The Adventures of Super Mario Bros. 3 and Super Mario World), Mike Vaughn (2009-2014), David J. Goldfarb (2014-present)

A name given to seven siblings who appeared as bosses in Super Mario Bros. 3, Super Mario World, Mario is Missing!, Yoshi's Safari, Hotel Mario, Mario & Luigi: Superstar Saga, New Super Mario Bros. Wii, New Super Mario Bros. 2 and New Super Mario Bros. U. Their original role was Bowser's children, which was true in Japan in Super Mario Bros. 3, but was downplayed almost immediately after in Super Mario World. They have been considered his kids as late as Super Smash Bros. Melee, but outside of re-releases of older titles they are only ever referred to as his minions.

In their original order:
  • Larry Koopa, the runt of the litter, with a penchant for sports (at which he cheats, natch). Named "Cheatsy" in the DiC adaptations.
  • Morton Koopa Jr., a cantankerous little (or rather huge size-wise) grouch who takes after Roy. Named "Big Mouth" in the DiC adaptations.
  • Wendy O. Koopa, the only girl and a spoiled, greedy little brat. Named "Kootie Pie" in the DiC adaptations.
  • Iggy Koopa, a technological genius who is more than a little nutty. Named "Hop" in the DiC adaptations.
  • Roy Koopa, a big bad guy with cool shades. Named "Bully" in the DiC adaptations.
  • Lemmy Koopa, a lackadaisical, cross-eyed (and very tiny) clown who is more than a lot nutty. Named "Hip" in the DiC adaptations.
  • Ludwig von Koopa, a crazed composer with a sadistic streak. Named "Kooky" in the DiC adaptations.

Tropes associated with the Koopalings:
  • A Day in the Limelight: They were the stars of the Nintendo Comics System story Bowser Knows Best (incidentally the only full story in the Nintendo Comics System to feature all the Koopalings), where they kidnap the Princess as a father's day gift for Bowser. Wendy and Lemmy both made additional appearances in the comics and got their own Day In The Limelight, Wendy in the story Fins and Roses (which could also count as Villain Episode), and Lemmy (sort of) in the story The Revenge of Pipe Ooze!
  • Ambiguously Brown: Most of them look somewhat like Bowser, except Morton, who is randomly dark brown.
  • Ax-Crazy: Iggy was implied to be this in the text box after beating him in Super Mario World, and confirmed in New Super Mario Bros. Wii.
  • Bald of Evil: Roy and Wendy are the only Koopalings without hair. Morton would qualify as well, were it not for the three thin hairs on his head.
  • Bald Woman: Wendy. Her ginormous pink ribbon may make this less obvious, but true enough she has no hair on her head even while most of her siblings do.
  • Bastard Understudy: Cheatsy tries to double cross his father a couple of times in the cartoons. He's quite assured he'll be especially proud of what an underhanded villain he is.
  • Big Screwed-Up Family: For the first time in years, their Palutena's Guidance description in Super Smash Bros. for Wii U acknowledges the ambiguous relationship to Bowser and Bowser Jr., suggesting they may actually be more like estranged relatives.
  • Bratty Teenage Daughter: Wendy. Taken to extremes for the DiC cartoon's "Kootie Pie".
  • Breath Weapon: Ludwig was the first of the Koopalings to show this ability, as he used it in his battle in Super Mario World. Later, they all used fire breath in Mario & Luigi: Superstar Saga.
  • Brilliant but Lazy: Implied by Roy's trophy in Super Smash Bros. for 3DS/Wii U, which states that he can go from slacker to soldier very quickly.
  • The Brute: Roy and Morton are the largest and physically strongest Koopalings. Moreso Morton, whose trophy in Super Smash Bros. for 3DS/Wii U describes him as "more brawn than brains".
  • Butt Monkey: Larry seems to be characterized as this in New Super Mario Bros. Wii — he gets trapped under the cake in the opening cutscene, is the first boss to be fought, and has the hardest time reaching Bowser's castle in The Stinger.
  • Canon Foreigner: Not them, but their personalities from the Mario cartoons.
  • Child Soldier: Now that they're no longer called Bowser's children in new material, it is implied that the Koopalings are essentially treated the same way as soldiers in his army.
  • Cloudcuckoolander: Lemmy in Nintendo Comics System, though he didn't actually appear to be as stupid as everyone made him out to be.
  • Cool Shades: Roy, as a reference to musician Roy Orbison, who he's named after.
  • Color-Coded for Your Convenience:
    • Super Mario Bros. 3
      • Larry - Green
      • Morton - Gray
      • Wendy - Red
      • Iggy - Blue
      • Roy - Pink
      • Lemmy - Green
      • Ludwig - Teal (Green in the SNES/GBA version)
    • Super Mario World
      • Iggy - Blue
      • Morton - Green (Teal in the credits)
      • Lemmy - Yellow
      • Ludwig - Yellow
      • Roy - Blue (Gray in the credits)
      • Wendy - Red
      • Larry - Green
    • New Super Mario Bros. series
      • Larry - Light Blue
      • Roy - Purple
      • Lemmy - Orange
      • Wendy - Pink
      • Iggy - Green
      • Morton - Black
      • Ludwig - Dark Blue
    • Mario Kart 8
      • Iggy - Lime green karts with lime green emblems.
      • Roy - Fuchsia karts with pink emblems.
      • Lemmy - Teal karts with yellow emblems.
      • Larry - Yellow karts with azure emblems.
      • Wendy - Pink karts with white/pink emblems.
      • Ludwig - Dark blue karts with blue emblems.
      • Morton - Black karts with gray emblems.
  • Creepy Twins: Iggy and Lemmy. The twins part is only in the cartoons, though. Distancing them from this trope may have been the reason Iggy was so radically redesigned compared to the others.
  • Daddy's Little Villain: Kooty Pie in the cartoons. Koopa dotes over her especially and tries to ease her bratty tantrums, which are usually over capturing or taking over something notable.
  • Dark Action Girl: Wendy, the only girl among them.
  • Defeat Means Playable: In Puzzle & Dragons: Super Mario Bros. Edition, each Koopaling you defeat in a Special World will join your team.
  • Divergent Character Evolution: Iggy and Lemmy were originally close enough in looks to be made twins in the spinoff cartoons, the main differences being the eyes (Iggy wears glasses and Lemmy has a lazy eye) and size (Lemmy is small and Iggy is tall and thin, the latter more apparent in their redesign). As of New Super Mario Bros. Wii, Lemmy's grown a ponytail and Iggy gained green palmtree hair.
  • The Dragon: Before Bowser Jr. was introduced, Ludwig was said to be Bowser's second-in-command.
  • Double Jump: In New Super Mario Bros. Wii, Ludwig has learned to quadruple jump. Or more accurately: He's learned Yoshi's Flutter Jump.
  • Dub Name Change: That and Theme Naming is why Morton is a Jr.
  • Dumb Muscle: Morton, whose trophy in Super Smash Bros. for 3DS/Wii U describes as being "more brawn than brains".
  • Dummied Out: They were planned to be in Super Princess Peach, but were left out of the final game..
  • Evil Cripple: The book Pipe Down! revealed Ludwig is partially deaf note , though in the best ending his hearing is restored by an explosion.
  • Evil Genius: Both Iggy and Ludwig fill this role, but it's only apparent in spinoff material (cartoons for the latter, adventure books for the former); however, this is still implied in the games (due to Iggy's recurring Chain Chomp contraption and Ludwig described as among the smartest of his peers).
  • Face Ship: Each of the Koopalings get their own airship with their face on it in New Super Mario Bros. U.
  • Four Eyes, Zero Soul: Iggy is the only one who wears glasses (not counting Roy's sunglasses), and the most maniacal.
  • Four-Temperament Ensemble: Larry (choleric/phlegmatic), Roy (phlegmatic), Lemmy and Iggy (sanguine), Wendy (choleric), Morton (leukine), Ludwig (melancholic).
  • Genius Bruiser: Ludwig. He was implied to be smart enough to develop and design his own mech, classy enough to like Opera and the like, and is also powerful enough in combat. Taken up a notch in his cartoon "Kooky" counterpart who is a Mad Scientist.
  • Giggling Villain: Iggy's style of laughter. He makes up for this by never stopping.
  • Go-Karting with Bowser: In Mario Kart 8 the Koopalings go karting with the other characters.
  • Guttural Growler: Morton Koopa Jr. In the New Super Mario Bros. series, he sounds like a deeper Tazmanian Devil. In Mario Kart 8, his voice now sounds like a combination between Fat Albert and Arnold Scwarzanegger.
  • Hair-Trigger Temper: Larry. As a boss, he'll blow a fuse when seeing Mario in the New Super Mario Bros. series and will lose it when he gets defeated in his game of tennis in Mario & Luigi: Superstar Saga.
  • Healing Factor: Wendy is capable of healing herself in Puzzle & Dragons: Super Mario Bros. Edition.
  • I Have No Son: Someone wrote in to Nintendo Power, at the time published directly by Nintendo, and asked them what the deal was with Morton being a Jr. NP said that the Bowsers were in the middle of a family spat, and when asked about it, Bowser shouted that he had no son and threw Bob-Ombs at the writers until they ran away.
  • Improbable Weapon User: Lemmy's spell of choice? Giant rubber balls. That don't even hurt you. At least Wendy's "candy rings" could be assumed to be razor sharp.
  • Informed Attribute: Mario Kart 8 describes Ludwig as a "showy Anti-Hero".
  • From Bad to Worse: After Mario and company rescue Peach and go home in New Super Mario Bros. Wii, Larry drags himself back home to see his siblings helping Bowser up from his shell and get crushed by their castle.
  • Jerk Jock: Mario & Luigi: Superstar Saga shows that Larry has an interest in tennis. Also Bully in the cartoons.
  • Jumping Out of a Cake: Along with Bowser Jr. in New Super Mario Bros. Wii.
  • Keet: Lemmy and Iggy. Lemmy in a cute, childish way, and Iggy in a manic, disturbing way.
  • Laughing Mad: Iggy's been shown to have this trait in New Super Mario Bros. Wii. Mad Scientist indeed. Note that in the hallway up to his boss battle, you can hear him giggling with no abandon, while the other six would quietly wait for you to enter their arena. It gets even worse once the battle actually starts.
  • Lean and Mean: The other most notable change in Iggy's redesign. Although it was never previously clear how tall he was in comparison to the others, he eventually became the indisputably tallest of theKoopalings, and gained a lanky body shape to go with it.
  • Mad Artist: Ludwig in the games, coupled with Evil Genius (considering that he seemed adept enough in technology to utilize a mech that looked very sophisticated in Yoshi's Safari).
  • Multicolored Hair: Iggy's original design and Lemmy (as well as Larry in the anime) both have rainbow hair.
  • Nerd Glasses: Iggy's most notable feature, especially before his redesign. The lenses themselves tend to alternate between giving him demented-looking irises as seen in the picture, or the standard nerdy spirals.
  • No One Could Survive That: In Super Mario World, all of the Koopalings were either dunked into hot lava, or in the case of Morton, Roy, and Ludwig, smashed against a wall, and then had their castle blown up for good measure, yet they managed to reappear in Mario & Luigi: Superstar Saga and later in New Super Mario Bros. Wii and New Super Mario Bros. 2. It's especially notable in that the narration in Super Mario World could be interpreted to imply that they had died in the battle. Then again, this is basically common for the Koopa Troop!
  • Non-Mammalian Hair: Only Roy and Wendy are entirely devoid of hair.
  • Older Than They Look: Lemmy is the smallest of the Koopalings, is the most childish and playful, and doesn't seem to really care about Bowser's world domination conquest. Naturally, he was implied in an early player's guide to be the second oldest after Ludwig.
  • Power Glows: The spells fired from their wands in New Super Mario Bros. Wii have their own colors, depending on who's using it.
  • Promoted to Playable: Mario Kart 8 marks the first time in the franchise's history where they are playable characters.
  • Punch Clock Villain: According to the Super Mario Bros. 3 Nintendo Power stategy guide, Lemmy doesn't really care about Bowser's plans, and would rather join the circus.
  • Real Men Wear Pink: Roy is literally pink all over: pink skin/scales, pink shell, pink shades... Although as of New Super Mario Bros. Wii, his shell has been made purple to avoid conflict with Wendy's shell color in their newly established color coordination. Still the same principle, though.
  • The Red Baron: During their showcase in the Mario Kart 8 Direct, they each have a cool title.
    • Larry is the "Super Trooper of Bowser's Army" and "Authority of Acceleration".
    • Roy is the "Runaway Heavyweight Koopa" and "Bespectacled Brute".
    • Iggy is the "Trickster with the Sweet Specs" and "Wild Child".
    • Lemmy is "Mr. Agility Supreme" and the "Ace of Speed"
    • Morton is the "Invincible Tough Guy" and "Mass of Muscle".
    • Wendy is the "Princess of Destruction" and "Speed Queen".
    • Ludwig is the "Showy Anti-Villain" and "Conductor of Chaos".
  • Retcon: They were originally stated to be Bowser's seven children, but once Bowser Jr. debuted, he was treated as Bowser's only child, and Shigeru Miyamoto later confirmed that this was the case.
  • Shout-Out Theme Naming: The Koopalings are either named after musicians (mostly rock and punk), or (in Morton's case) talk show hosts. note 
    • Larry is named after Larry Mullen, Jr. from U2.
    • Morton is named after Morton Downey Jr, but is dressed up to look like KISS.
    • Wendy is named after Wendy O. Williams of The Plasmatics.
    • Iggy is named after Iggy Pop, of The Stooges.
    • Roy's named after Roy Orbison.
    • Lemmy's name comes from Lemmy Kilmister, of Motorhead.
    • Finally, Ludwig is, of course named after Ludwig van Beethoven .
  • Single-Minded Twins: Hip and Hop in the cartoons. Not so much in the games, where their personalities are polar opposites (Goofball Idiot and Insane Genius respectively).
  • The Smurfette Principle: Wendy is the only female of the Koopalings.
  • Speech Impediment: The cartoon version of Morton tended to roll his B's.
  • Spin Attack: Utilized by a few of them in Mario and Luigi: Superstar Saga.
  • Spoiled Brat: Wendy. Especially in the cartoons, where at one point she even gets Bowser to try and obtain the entire country of America as a birthday gift for her!
  • The Starscream: Cheatsy has traces of this in the cartoons. In Bowser's presence, he's always fawning and admiring, but he takes any chance he can get to be in charge, and once tries to take over the Mushroom Kingdom himself.
  • Timed Mission: The later Koopalings in Superstar Saga are accompanied by a bomb that counts down as the battle wears on. If it reaches zero, it explodes and instantly beats Mario and Luigi.
  • Took a Level in Badass: Larry, who's otherwise the runt of the litter, was the last fought and toughest of all the Koopalings in Super Mario World. That also goes for Superstar Saga, as the Koopalings are fought in the same order. He also single-handedly handed Mario his ass in the obscure choose-your-adventure book Dinosaur Dilemma Note  In Super Smash Bros. for Nintendo 3DS (at least in the English version), he's declared leader of the Koopalings.
  • Underwater Boss Battle: Wendy's boss arena fills up with water in New Super Mario Bros. Wii and New Super Mario Bros. 2.
  • Undying Loyalty: The Koopalings were shown to be extremely devoted to Bowser. For example, in The Stinger for New Super Mario Bros. Wii, the Koopalings attempted to help Bowser up (although they ended up squished by Bowser's castle in the process), and in New Super Mario Bros. 2, they even directly aided him in a manner similar to Kamek in the former game (ie, by causing Bowser to grow bigger) during the final battle.
  • The Unintelligible: Larry in Nintendo Comics System. Instead of words, his dialogue balloons were filled with pictures, and only Lemmy could understand him.
  • The Voiceless: The only time they've spoken in the games is in the original PC version of Mario is Missing!.
  • Younger Than They Look: Morton's one of the biggest (THE biggest in New Super Mario Bros. Wii) Koopalings, is heavy enough to cause small earthquakes, and has a pretty deep voice. Naturally, he was implied in an early player's guide to be the second youngest after Larry.
  • Youngest Child Wins: A Prima guide implies that Larry, who was earlier stated to be the youngest in an old Super Mario Bros. 3 player's guide, is the favorite of Bowser's minions.

    Kamek 
Does Baby Mario want to go to Bowser's castle? I'll take him there in a hurry!
"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 the name of the Magikoopa species in general in Japan and France.

Tropes associated with Kamek:
  • Evil Sorcerer: As the best of the Magikoopas, Kamek is responsible for enlarging and shifting Bowser's minions.
  • 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. 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, while Kamek shows up repeatedly throughout the worlds to make your life difficult.
  • Instant Runes: The Magikoopas shoot what look like PlayStation button symbols at you.
  • King Mook: He looks no different from the other Magikoopas, however. In some appearances his hat and sleeves have white trim while the other Magikoopas' don't, but in others that's not the case, or all Magikoopas have that feature.
  • Magical Nanny: To Bowser when he was young, and whenever he's assisting the Koopalings.
  • Make My Monster Grow: Most of the bosses in Yoshi's Island are created by him this way. He does it to himself for a change in Super Princess Peach.
  • Mana Burn: In Sticker Star, he has a spell that randomly destroys one of your stickers. Hope you weren't saving that one for hitting a boss's weakness!
  • 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.
  • 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.
  • Opaque Lenses
  • Parental Substitute: For Bowser when he was young.
  • Psychic Powers: Including clairvoyance, precognition, hypnosis, and telekinesis.
  • Recurring Boss:
    • Fought three times in Sticker Star.
    • Also fought three times in Dream Team, towards the end.
    • In Yoshi's New Island, he is the boss of every mid-world fortress.
  • Robe and Wizard Hat
  • Scary Shiny Glasses
  • 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.
  • 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, 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.
  • Time Paradox: In Yoshi's Island DS, one Kamek steals Baby Bowser from another Kamek. What?
  • The Unfought:
    • In Yoshi's Island and Yoshi's Island DS, despite being the main antagonist. Averted in Yoshi's New Island, where he's a Recurring Boss.
    • Also in Super Mario Galaxy, where he blasts Mario into space in the opening, then just disappears for the rest of the story.
    • This is even the case in Puzzle & Dragons: Super Mario Bros. Edition. The opening confirms that he was the one responsible for causing the Mushroom Kingdom to overflow with orbs. This time, he's never even encountered by the heroes in their adventure, unlike the above two examples.
  • 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. The Bros. didn't fall for his Peach disguise the second time in Dream Team; instead, they got ready to attack him.
  • What Happened to the Mouse?: After he blasts Mario off into space in Super Mario Galaxy, he just disappears from the rest of the story.
  • 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.

    The Koopa Troop 
"Koopa Pack, ATTACK!"

Bowser's loyal legion of minions, the Koopa Troop (so named in Super Mario RPG) is thousands strong and made up not only of Koopa Troopas but also Goombas, Piranha Plants, Spinies, Bob-ombs, Bullet Bills, and other assorted baddies. Most koopas 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 turtle-people. Bowser's rank and file, the Koopas include numerous variants, including the common Koopa Troopas, the winged Koopa Paratroopas, the cloud-riding Lakitus, the animal-like Buzzy Beetles and Spinies, and so on. Their shells seem to be articles of clothing rather than part of their anatomy. Debut: Mario Bros. (as "Shellcreepers").
  • Goombas: The weakest of Bowser's minions. These armless chestnut-creatures 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..
  • Dry Bones: Skeletal Koopa Troopas that come back to life not long after being stomped. They usually stay in castles. Debut: Super Mario Bros. 3.
  • 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 just 'Chomps'. Debut: Super Mario Bros. 3.
  • Cheep-Cheeps: Goggle-eyed fish that swarm underwater (and sometimes jump 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: Super Mario Bros. 2.
  • 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: Nonsentient fireballs that leap out of the lava pits that Bowser so loves. 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 the koopas, there are several varieties and colors, and they sometimes carry weapons. Debut: Super Mario Bros. 2.
  • 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 these are only 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 occuring enemies, yet feature prominently in Yoshi's Island and Yoshi's Story
  • Adorable Evil Minions: Koopa Troopa, Shy Guy, Blooper, and, in an Ugly Cute way, Goomba, Boo, and Dry Bones.
  • 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.
  • Always Chaotic Evil: They can come off as this in the main series, however in spinoffs some are shown to have their own personality and there are even a few good members of these species that don't live under Bowser's rule.
  • 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.
  • 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 latter in the game, but become the brunt of the enemies encountered afterwards. Including the Goombas.
  • Bedsheet Ghost: The Boos.
  • Canon Immigrant: All the enemies that debuted in Super Mario Bros. 2 originated in Doki Doki Panic (except Clawgrip), the game it was reskinned from. Nonetheless, they fit in well.
    • This is mostly due to Miyamoto having been the lead designer of the game. Part of the reason for it being a Dolled-Up Installment was that he didn't work on The Lost Levels. Several enemies from the game have not appeared again, however.
  • Cool Airship/Boat/Starship: They sometimes ride in these, which are essentially pirate ships held up by propellers in the air.
  • Dem Bones: The Dry Bones.
  • The Determinator: Goombas, according to Mario Party 9.
  • Elite Mooks: The Hammer Bros., Lakitus, Chargin' Chucks, and other bigger and badder koopa variants.
  • Evil Counterpart Race: The Goombas to the Toads. Though some spinoffs like the Paper Mario games, have good Goombas.
  • Fantasy Axis of Evil: Each type and its variants fills a particular niche.
  • Our Ghosts Are Different: It's never made quite clear what exactly the Boos are.
  • Giant Mook: See the Super Smash Bros. page for some specific examples, though it isn't limited to that game.
    • Big Boos and Banzai Bills are one of the earliest examples in Super Mario World.
      • Big Island from Super Mario Bros. 3 is a far earlier example, where Koopas and Goombas in the island absolutely dwarfed Mario.
  • 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.
  • 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); Big Bob-omb (Bob-ombs); King Boo (Boos); and General Guy (Shy Guys); not to mention Bowser himself. 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 Blooper line).
  • Invincible Minor Minion: Lava Bubbles are invincible to everything but stars. (and later ice balls) Boos are similar.
  • Mascot Mook: The Goomba and Koopa Troopa are very much symbols of the series.
    • Shy Guys are the mascots of games with Yoshi as the central protagonist.
  • Mecha-Mooks
    • Bullet Bills and Bob-Ombs, among others (Mecha-Koopas, Torpedo Teds, etc.).
    • Chomps are also implied to be these.
  • 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.
  • Mooks
  • 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.
  • My Species Doth Protest Too Much: Most notable in the first two Paper Mario games have helpful individual minions as your allies, though they also fight their usual mook counterparts.
  • The Spiny: Again, Trope Namer.
  • Names to Run Away From Really Fast: In Japan, Bullet Bills are known as "Killer" and Banzai Bills are called "Magnum Killers."
    • Bullet Bill also counts, being named after, well, bullets. 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-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.
    • Other games invert it and imply they do indeed die, notably when defeat a Boo is defeated in the first mission of Course 5 in Super Mario 64, they taunt you by saying "Ghosts... ...don't... ...DIE!"
    • The Koopalings in particular have been melted, exploded, disintegrated, etc., but always turn up fine next time.
  • Perpetual Frowner: The Thwomps tend to be this when their mouths are closed.
  • 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.
  • Red Eyes, Take Warning: Later designs of Buzzy Beetles have this, and you better take warning since they are flame-resistant.
  • Ridiculously Cute Critter: The Koopas.
  • 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.
  • Throw The Hammer: Hammer Bros. fight this way. 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..
  • 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.
  • 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)
  • You Don't Look Like You: The Boos in Super Mario Sunshine are freakin' weird to look at.
    • All the enemies in Super Mario Sunshine look different from their Mushroom Kingdom counterparts, even Delfino King Boo.
    • 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 of course they're separate from the usual Goombas).

    Petey Piranha 
"I will CRUSH you!"

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, not to mention 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:
  • 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.
  • Breath Weapon: His ability to spit up goop.
  • The Brute
  • 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.
  • 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 manuever similar to this in New Super Mario Bros.
  • King Mook: Of the Piranha Plants.
  • 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
  • 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 vomitting 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.
  • 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 and Luigi: Partners in Time, New Super Mario Bros, and Paper Mario: Sticker Star, he actually gets somewhat challenging.
  • Warmup 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.
  • Underwear of Power: Wears a red polkadot speedo that matches his head.
  • Unexplained Recovery: After being defeated in Super Mario Sunshine he transforms into goop, and dissolves, seemingly dead. He shows up completely fine in a later chapter... where he once again melts after being defeated.
  • The Unintelligible

    King Boo 
"If you hear me laughing, that means you're doomed!"

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 Telesa".

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.
  • 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.
  • Amplifier Artifact: His new crown in Dark Moon.
  • 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, broke out of the painting in Dark Moon, and plans to return the favor to Luigi and his friends.
  • Apocalypse How: Attempts either a Class X-4 or Z, and comes really, really close to pulling it off.
  • Arch-Enemy: Since his introduction in Luigi's Mansion, he's adopted this relationship with Luigi.
  • Authority Equals Asskicking: He's the leader of the Boos simply because he's bigger and stronger than the others.
  • 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.
  • 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.
  • Bedsheet Ghost
  • 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 sequel.
  • 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.
  • 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.
  • Dangerously Genre Savvy: In Dark Moon. First, he breaks the Dark Moon to get all the ghosts in Evershade Valley under his control. When Mario shows up to investigate, he captures him and several Toads in paintings to ensure that there's no interference. When Luigi shows up and begins tracking him, he has Big Boo set up an ambush in the train exhibit to throw him off the trail. Finally, after Luigi gets the final piece of the Dark Moon, he abducts him through the Pixelator and drops him in his illusion to get a crack at him. Though the fact that he loses the final piece counts as a moment of Genre Blindness, it's justified in that if he can defeat Luigi, he can simply break the moon again with no interference.
  • 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?"
  • 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.
  • 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
  • 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.
  • 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.
  • 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, his name is mistranslated as "Big Boo," even though there is already a boss called "Big Boo" in the game. This was corrected in Mario Kart DS, which used only bosses from Super Mario 64 DS in its Mission Mode.
  • Inexplicably Identical Individuals: Ok, so while far from identical, he is not the same King Boo from Super Mario Sunshine. Still, there's enough similarities to confuse people.
  • 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.
  • 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.
  • 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.
  • Playing with Fire: He attacks Peach with homing blue flames in Super Princess Peach.
  • 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 Super Mario 64 DS Retcons his first appearance in that game, so he could have been referring to that. And he 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.
  • 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
  • Supernatural Is Purple: This ghoul gains both purple eyes and a purple crown in Dark Moon.
  • 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 dememeanor to Luigi, you can tell he's seething with rage on the inside.
  • 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.
  • 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.
  • 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 spin-offs, like the Mario Party series, 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.
  • 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 
"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.
  • Badass: Being reduced to a skeleton doesn't stop Bowser; if anything, it just makes him more powerful.
  • 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".
  • Dem Bones: He's a skeletal version of Bowser.
  • Dracolich: He's a giant, undead, fire-breathing toothy reptile.
  • 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.
  • Defeat Means Playable: Just like his living counterpart, if you defeat him in Puzzle & Dragons: Super Mario Bros. Edition, he will join your team.
  • 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.
  • 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.
  • Nonmammalian Hair: His skin was burned off, but his hair remained intact.
  • 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.

    Bosses (debuting in Super Mario 64/Super Mario 64 DS

Big Bob-omb

"I'm the Big Bob-omb, baron of all blasting matter, king of ka-booms the world over!"

A giant Bob-omb who's watching the war between pink and black bob-ombs. As far as bosses go, he's pretty gracious when taking defeat.

Tropes associated with Big Bob-omb:
  • Badass Mustache
  • Big Bulky Bomb: Due to being the giant king of walking bombs.
  • Braggart Boss: In the remake he would constantly mention how awesome his mustache is, and refuse to take on anyone except Mario.
  • Chasing Your Tail: In order to beat him, he has to be grabbed from behind and tossed out of the mountain.
  • King Mook: Of the Bob-ombs.

Whomp King

"I think I'll crush you just for fun! Do you have a problem with that?"

King of the Whomps, he's tired of gravel being ignored. He wants some respect and takes his anger out on Mario.

Tropes associated with Whomp King:

Big Bully

Nothing really sets him apart from the other Bullies, other than his large size. That might be all that matters to the dim-witted creatures.

Tropes associated with Big Bully:
  • Degraded Boss: A later mission has three Big Bullies attacking at once.
  • King Mook: Of the Bullies.
  • Ring Out Boss: Like all bullies, Big Bullies can only be defeated by pushing them off their platforms.

Eyerok

"We no like...intruders! Now battle......hand...to...hand!"

A pair of giant hands with eyes on their palms who guard the center of a pyramid. Like all the other bosses, they are not happy to see Mario.

Tropes associated with Eyerok:

Big Mr. I

A giant version of the Mr. I enemy who hides out in the attic. Really, there's nothing else to say about him.

Tropes associated with Big Mr. I:

Chill Bully

A large bully made of ice who must be defeated in order to get a Power Star. Like normal bullies, he charges at you and must be knocked out of his ring, this time into icy water.

Tropes associated with Chill Bully:

Chief Chilly

"It's not a fair fight for you, but luckily, I'm not a fair fighter. Let's go!"

Bigger and stronger than Chill Bully, the chief knows a few more tricks than the average Bully. He, like Big Bob-omb, is also quite proud of his 'stache.

Tropes associated with Chief Chilly:
  • Badass Mustache: He boasts about it A LOT.
  • Braggart Boss: Like Big Bob-omb, he is constantly bragging about his mustache.
  • Co-Dragons: With Goomboss and King Boo, as Bowser has them guard Mario, Luigi, and Wario in Super Mario 64 DS.
  • King Mook: Of the Bullies.
  • Ring Out Boss: He is a bully.
  • Spikes of Villainy: He has a bunch of ice spikes on his head that is the shape of a crown, with a big yellow spike at the center.

    Bosses (debuting in Super Mario Sunshine

Shadow Mario

A mysterious criminal who resembles Mario. He uses his magic paintbrush to cause all sorts of problems on Isle Delfino. After the battle with Mecha Bowser, he reveals his true identity: Bowser Jr.

Polluted Piranha Plant

A species of giant, sludge-covered Piranha Plants.

  • Color-Coded for Your Convenience: There are three different kinds, which are distinguished by their different colors.
  • Flunky Boss: The brown and black ones spawn Swoopin' Stus.
  • Kill It with Water: They are defeated by squirting water into their mouths.
  • King Mook: One of two Piranha Plant bosses in the game, the other being Petey Piranha.
  • Recurring Boss: Encountered five times total. One pink, yellow, and orange one, two brown ones, and two black ones.
  • Stationary Boss: They never move from their designated positions.
  • Zero-Effort Boss: The very first one fought at Delfino Airstrip has no means of attack, so the only way to lose to it is to deliberately run into it and kill yourself via Collision Damage.

Petey Piranha

See above

Gooper Blooper

A massive blooper who is primarily fought in Sunshine by ripping off his tentacles and his sucker. While he hasn't become as popular as Petey Piranha, he's appeared in a few other games, making him a recurring foe for Mario.

  • The Bus Came Back: He returned in Paper Mario: Sticker Star as the third boss, this being his first major role since Super Princess Peach.
  • Dance Battler: In Sticker Star. The tone of the music and whatever dance he's doing determines his next attack.

Wiggler

Wiggler was sleeping on a heating device that was supposed to help the Sun Bird hatch. When Mario woke him up to help the Sun Bird's egg, Wiggler was not happy.

Mecha Bowser

A giant robotic version of Bowser, Bowser Jr. sicced the robot on Mario during their encounter in Pinna Park. Super Mario Galaxy features an entirely different version which appears in Toy Time Galaxy's first mission.

Green Electro-Koopa

A giant variant of the Electro-Koopa, the Green Electro-Koopa fell asleep by the Pinna Park Ferris Wheel. Because its presence was causing the ride to spin out of control, Mario had deal with the Electro-Koopa himself.

  • Flipping Helpless: Mario just has to flip the grate the Electro-Koopa is sleeping on in order to vanquish it.
  • King Mook: Of the Electro-Koopas.
  • Sleepyhead: He spends the whole level asleep.
  • Unique Enemy: It's not so much a boss, but more like a one of a kind enemy that contains a Shine Sprite

Phantamanta

A large, sentient silhouette in the shape of a manta ray. The electric goop it leaves behind causes Hotel Delfino to disappear.

  • Asteroids Monster: Squirting it causes it to split into smaller copies of itself.
  • Eldritch Abomination: It's a manta ray that oozes electric slime and splits into tinier versions of itself.
  • Living Shadow: While it's not dark like a shadow, Phantamanta does share the same physical properties of one.
  • Punny Name: Phantom + manta.
  • Shock and Awe: It leaves trails of electric goop wherever it goes.
  • Turns Red: After all of its copies are sprayed into their tiniest form, the Phantamantas turn a pinkish-red and immediately start to home in on Mario.

King Boo

A king of the Boos exclusive to this game. It has been stated that he is not the same King Boo who debuted in Luigi's Mansion; his Japanese name is "Boss Telesa".

  • Does Not Like Spam: Spicy foods, peppers in particular.
  • Feed It a Bomb: In order to make him vulnerable to attack, Mario has to throw hot peppers into his mouth.
  • Fire-Breathing Diner: After feeding him a pepper, he starts breathing fire.
  • Flunky Boss: He can summon enemies to his aid with his slot machine.
  • The Gambler: He hides out underneath the giant roulette wheel in Hotel Delfino's casino. His boss fight involves spinning a slot machine.
  • King Mook: At least of the Delfino Boos.
  • Large and In Charge
  • Overly Long Tongue: He uses it to spin his slot machine, as well as lick the fruit juice off his face if you try to throw fruit at him without feeding him a pepper first.

Eely-Mouth

A monster eel (that appears to be a hermaphrodite, oddly enough) and has some major dental problems. Its teeth are so bad that they somehow infect the water in Noki Bay, meaning Mario and FLUDD must go and clean things up, yet again.

    Bosses (debuting in New Super Mario Bros.

Mummipokey

A mummified Pokey, Mummipokey was the boss for World 2. It attacked Mario by hiding beneath the sand and emerging to spit projectiles at him.

  • Fangs Are Evil: Unlike regular Pokeys, Mummipokey has a toothy maw that juts out of its face.
  • King Mook: Of the Pokeys.
  • Mummy: A mummified cactus to be specific.

Cheepskipper

Cheepskipper was a large, fanged Cheep-Cheep that was the boss for World 3. Cheepskipper hided underneath the water in the castle and leaped to attack Mario.

  • Flunky Boss: Regular Cheep-Cheeps assist Cheepskipper during the boss battle by leaping out of the water.
  • King Mook: Of the Cheep-Cheeps.
  • Underwater Boss Battle: The fight with Cheepskipper happens on a bridge suspended over water.

Mega Goomba

Once a regular Goomba, Mega Goomba was mystically enhanced to grow to a gigantic size in order to stop Mario. Because of its size, it didn't need to change its normal strategies during the fight.

Monty Tank

A tank piloted by a single Monty Mole, Monty Tank patrolled the castle in World 6. It utilized Bullet Bills and Bob-ombs for its artillery.

  • Tactical Suicide Boss: If its driver didn't stick its head out every now and again, Mario would be unable to defeat the tank (unless he brought a Mega Mushroom with him).
  • Tank Goodness: The Monty Tank is immune to most attacks and has a decent artillery.
  • Turns Red: For every hit it takes, an extra level is added to the Monty Tank.

Lakithunder

Lakithunder was the boss of World 7, and was a Lakitu who piloted a thundercloud. While mostly relying on his cloud to attack, Lakithunder also used Spinies during his fight with Mario.

    Bosses (debuting in Super Mario Galaxy

Dino Piranha

A prehistoric Piranha Plant that attacks Mario as soon as its hatched. It is first fought in the Good Egg Galaxy.

King Kaliente

Bugaboom

Megaleg

“Go at 'em, Megaleg! Stomp 'em with the power of your Grand Star!”

A planet-sized robot under Bowser Jr.'s control. It is fought in Bowser Jr.'s Robot Reactor.

Kamella

Tarantox

Topmaniac

Bouldergeist

Major Burrows

Baron Brrr

Undergrunt Gunner

Kingfin

Fiery Dino Piranha

    Bosses (debuting in Super Mario Galaxy 2

Peewee Piranha

Giga Lakitu

Digga-Leg

A two-legged jumping robot fueled by a power star. It is fought in the Spin-Dig Galaxy.

  • 2½D: It's battle is fought purely in a two-dimensional sidescroller fashion.
  • Attack Its Weak Point: It's glass underside contains the power star that fuels it.
  • Flunky Boss: It will occasionally summon Digga enemies that will burrow towards Mario.
  • Goomba Stomp: It will jump side to side in an attempt to squish the player.
  • Humongous Mecha: It's pretty small compared to the other mechanical bosses in the game, but still big compared to Mario.
  • Suspiciously Similar Substitute: It's design, battle, name, and appearance are extremely similar to Megaleg from the first Mario Galaxy, except much smaller and with two legs instead of three.
  • This Is a Drill: Digga-Leg's primary weapon is a drill on its head that spawn Diggas, which will attempt to burrow through to the other side of the planet and attack Mario. Mario must use a drill of his own in order to defeat it.

Gobblegut

Rollodillo

Sorbetti

Megahammer

"Well, come on, tough guy! Let's see if you're any match for Megahammer!"

A hammer-wielding mech piloted by Bowser Jr. It is fought in Bowser Jr.'s Fearsome Fleet.

  • Attack Its Weak Point: Megahammer has four weakpoints: three are the large blue structures around its body, and the final is Bowser Jr's cockpit.
  • Drop the Hammer: The mech's primary weapons are two giant hammers that create shockwaves when they hit the stage.
  • Humongous Mecha: Big enough that the entirety of the cockpit fits into his head.
  • In the Back: The third blue weak-point is located on Megahammer's back.
  • More Dakka: Like Megaleg before it, Megahammer is adorned with cannons that will shoot homing bullet bills at Mario and Yoshi.
  • Motif: It somewhat resembles a Koopa Clown Car.
  • Not Quite Dead: The wrecked Megahammer can be found just before fighting the Boomsday Machine, along with the Toad Brigade. If you talk to Captain Toad, he'll assure you it's broken, to which the "broken" mech will immediately fire a Bullet Bill at you.
  • Pivotal Boss: Megahammer never moves from the center of the stage, and merely turns to follow your movements on the ring-like platform that surrounds it.
  • Tactical Suicide Boss: If it didn't shoot Bullet Bills...

Glamdozer

Squizzard

Prince Pikante

Fire Gobblegut

Boomsday Machine

“I’ll just relax in my comfy cockpit and watch you go BOOM!”

A huge mechanical weapon owned and operated by Bowser Jr. It is fought in Bowser Jr.'s Boom Bunker.

  • Attack Its Weakpoint: Like many of Bowser Jr.’s machines, it’s the cockpit. The trick is getting to it.
  • Bootstrapped Leitmotif: It has the "Enter Bowser Jr." theme from the first Mario Galaxy as its leitmotif.
  • Energy Ball: The main weapon of the Boomsday machine is a massive cannon that shoots homing balls of electricity.
  • Floating Platforms: You need to use the Cloud Mario power up to get close enough to groundpound the cockpit. A fan weapon will occasionally suck in and destroy all of the clouds that are currently on the field.
  • Foreshadowing: Immediately before fighting the Boomsday Machine, you must cross a series of platforms using the Cloud Mario power up and ground pound a pillar of rocks to reveal a sling-star: the exact steps you need to take to defeat it.
  • Humongous Mecha: It's so big that Mario can walk along the surface of the tank treads.
  • Motif: The machine seems designed around the idea of a castle tower, with rotating bastions and a brick-like exterior.
  • Pivotal Boss: Subverted. It becomes mobile once you get two hits on it.
  • Ring of Fire: Three rotating fire-bars stick out of the bottom of the tower portion of the tank meant to hit Mario when he’s on the ground. When the machine’s tank form comes out, the fire-bars becomes an aerial hazard.
  • Shock and Awe: The cockpit will occasionally let out a burst of electricity as a last line of defense against ground pounds.
  • Sigil Spam: Bowser Jr’s personal logo is stamped on the front of the tank treads.
  • Spikes of Villainy: Huge spikes line the front of the tank that will hurt Mario if he touches it. Spikes also line the sides of the tank treads.
  • Tank Goodness: After taking damage to its cockpit twice, the machine will start to rise out of the ground to reveal gargantuan tank treads.
  • Weapons That Suck: Fans are strategically placed on the sides of the tower to suck in any clouds Mario may have made trying to attack the cockpit. The trope also applies to the fans you need to use to beat it.

    Bosses (debuting in Super Mario 3D World

Hisstocrat and Queen Hisstocrat

A pair of enormous snakes in royal regalia, who summon other gigantic snakes to attack Mario and his friends. Hisstocrat is battled first, while Queen Hisstocrat appears later.

Boss Brolder

A gigantic Brolder composed of rock, crystal, and magma.

King Ka-Thunk

A large Ka-Thunk, who exists as a spiked metal square attached to a large metal frame.

Prince Bully

  • King Mook: Yet another boss version of Bullies.
  • Playing with Fire: Able to spit fireballs besides ramming into the player(s). Can also spit blue flames during his rematch.

Motley Bossblob

  • Asteroids Monster: Sort of, the giant clown is formed from and splits into small blobs.
  • Monster Clown: A giant metallic one encases the actual Koopa, formed from gelatinous blobs.
  • Villainous Harlequin: A jester Koopa that encases itself in blobs to become a giant clown.

    Bosses (debuting in Yoshi's Island

Burt the Bashful

Salvo the Slime

  • Asteroids Monster: Shooting eggs causes pieces of slimes to fall off him, which only give you more eggs to hit him with.
  • Degraded Boss: Played with. He shows up in Bowser's Castle with no new tricks, but he's fought in a room where there's no way to refill your eggs, forcing the player to find a new strategy to beat himnote  or use up items.

Bigger Boo

  • King Mook: This applies to most of the bosses but especially noted here because he's BIGGER Boo. And he only gets bigger with each hit until he explodes.

Roger the Potted Ghost

Prince Froggy

Naval Piranha

  • Combat Tentacles: Two of her vines end in small Nipper buds; she uses these to try to hit Yoshi from below and to block his movement.
  • Man-Eating Plant: She's a large, mobile, killer Piranha Plant.
  • Mook Maker: She can spit three seeds that drift down and become Nipper plants that chase Yoshi around.
  • Ramming Always Works: Her main attack is a fast charge that ends when she slams into the opposite wall. She can fake you out by ending it early, though, which can lead to either jumping on her head, her thorny neck, or one of her two attack vines while trying to jump over her to dodge the charge.
  • Skippable Boss: If you swim into her lair but not far enough to close the way behind you, you can shoot an egg at her ungrown normal form, skipping the fight completely.

Marching Milde

  • Asteroids Monster: The second boss in the game to be such, except they all have to be ground-pounded until small enough.

Hookbill the Koopa

Sluggy the Unshaven

  • Advancing Boss of Doom: If you don't attack him, he'll push you into the abyss. However, he moves verrrrry slooooowly.
  • Attack Its Weak Point: Despite Kamek claiming he has no weak spot, it's very obvious where it is.

Raphael the Raven

  • Heel-Face Turn: In Paper Mario.
  • Puzzle Boss: Out of all the bosses in the game yes, considering you have to wait until he's exactly on the OTHER side of the battlefield in order to slam him from underneath.
  • Stars Are Souls: He becomes one after his defeat, although Paper Mario shows that he got better.
  • Turns Red

Tap-Tap the Red Nose/Tap-Tap the Golden

  • Advancing Boss of Doom: When he reappears in Bowser's Castle in Golden form, he cannot be killed and will pursue Yoshi throughout the stage, even jumping out of pits when he falls into one. All the player can do is knock him back and run to the exit.
  • Degraded Boss: As described above.
  • Implacable Man: He's completely invulnerable to everything in Yoshi's arsenal, and is only defeated by destroying the blocks covering the lava pit and knocking him into it. And then once he pops up in Bowser's Castle, even knocking him into pitfalls doesn't stop him.

Baby Bowser

See Bowser

    Other 

Boom Boom

Tropes associated with Boom Boom:

Reznors

Tropes associated with Reznors:
  • 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.

Big Boo

Tropes associated with Big Boo:

Pom Pom

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.
  • Doppelgänger Attack: Her battle strategy in 3D World. The copies she creates appear to be solid, as their shuriksn do damage.
  • Distaff Counterpart: To Boom Boom. The Prima Guide for 3D World claims that she's his sister.
  • Dual Boss: With Boom Boom in World 7-Airship and Special 8-Crown.
  • 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.
  • Guys Smash, Girls Shoot: In contrast to Boom Boom's physical approach, Pom Pom fights by throwing projectiles 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.
  • 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 an mob of shadow clones.
  • 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.
  • 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 Kid

Debut: Mario Party (as "Baby Bowser")

Tropes associated with Koopa Kid:
  • I Have Many Names: Also known as Baby Bowser and Mini-Bowser.
  • Literal Split Personality: In Mario Party 5, he has the ability to split into Red Koopa Kid, Green Koopa Kid, and Blue Koopa Kid.
  • 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.
  • Token Evil Teammate: When he's playable.

Boss Sumo Bro.

Tropes associated with Boss Sumo Bro:

Unagi

Unagi is a huge eel found in Jolly Roger Bay of Super Mario 64.

Tropes associated with Unagi:

Mad Piano

The Mad Piano is a piano that appears in Big Boo's Haunt.

Tropes associated with the Mad Piano:

  • The Cameo: It makes a cameo in Horror Land in Mario Party 2 during the night, along with some other haunted instruments.
  • Dub Name Change: In German versions, it is called "Vampiano," which is a Portmanteau of "vampire" and "piano", which is appropriate given its large teeth.
  • Instrument of Murder: Literally.
  • Jump Scare: It comes alive whenever the player runs near it or jumps on top of it.
  • Nigh-Invulnerability: This is one of the only enemies that can't be killed by any means.
  • Paper-Thin Disguise: It provides its Jump Scare just by standing still. It works for new players, but veteran players can already expect it.
  • Piano Drop: Since it attacks Mario by jumping around, it can count as dropping.
  • Piano Key Wave: When the Mad Piano chomps its teeth, it makes a sound like someones banging on its keys.
  • Scary Teeth: HUGE ones.

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.