Koopa Kids/Mini Bowsers
A Koopa Kid, or Mini Bowser.
Species Origin Koopa
Koopa Troop

Koopa Kids (also known as Baby Bowsers, or in European countries Mini Bowsers, not to be confused with Baby Bowser) are minions of Bowser. Just like with Yoshi and Toad, there is one character, with a species of look-alikes. They are similar in appearance to both Baby Bowser and Bowser Jr..

Koopa Kids have seemingly been removed from the Mario Party series starting in Mario Party 8, likely in favor of Bowser Jr., who appears in Mario Party DS onward. However, they still appear in a plethora of fan material.


The Koopa Kids serve Bowser in the Mario Party series and appear to be behind some of the mini games, suggesting they have technical skill across the board. Earlier games suggested a son and father relationship between Koopa Kid and Bowser, however this quickly was retconned in later games to be just a henchman relationship.

In Super Mario: Elemental Journey, it is re-established that Koopa Kid is a modified DNA clone of Bowser, who Bowser used as a son figure until Bowser Jr. entered his life. Koopa Kid was then abandoned by Bowser after he had Bowser Jr.. Since then, Koopa Kid has been searching for his purpose and found it in becoming a hero like Mario and his friends. It is hinted he has a precocious crush on Cosmetta, although has moved past it in recent appearances.


Diaper Duty Series

Koopa Kid Gets Mad

Koopa Kid makes his Diaper Duty debut in Diaper Duty 5: Koopa Kid Gets Mad where he is Baby Bowser's cousin and has been used as a scapegoat to fool the Star Children. Koopa Kid as a figurehead tries to take over the Mushroom Kingdom. He is however defeated by the Star Children. It is revealed that Kammy Koopa is his nursemaid like Kamek is for Baby Bowser.

Nega Star Children

Koopa Kid returns in Diaper Duty 7: The Nega Star Children where his cousin Baby Bowser has managed to steal the star power and he is one of the ones he gives it to. Koopa Kid becomes one of the Nega Star Children only to be defeated by the unpowered Star Children.

Koopa Kid's Revenge

Koopa Kid returns in the final Diaper Duty game Diaper Duty 10: Koopa Kid's Revenge here he has put together a team of villains with Kammy Koopa, Kamella and Petey Piranha and is trying to take over the Mushroom World and destroy his cousin Baby Bowser. He has his Magikoopa friends create a new power called the Ztar power which is stronger than the star power however he is still defeated and his Ztar power turns into the eighth-star power.

Behind the Wheel

Koopa Kid appears as an unlockable playable character in the racing game Bowser's Castle Racing.


  • Weight: 40%
  • Driving Skill: 40%
  • Item Power: 40%
  • Speed: 40%

Game's Description

The Koopa Kid, are the grandchildren of Bowser, they're ready for the win and destroy everything with their Ladybug-Machines.

Lets-a-go, Mario

Koopa Kids make their first platformer appearance in Lets-a-go, Mario as regular enemies. Normally, they will just act as Bowser did in Super Mario Bros. except with a lot more speed and without hammers. Also, they can be stomped. However, sometimes, a Koopa Kid will split into three when the player gets near, with one red, one blue, and one green. The red one will chase the player relentlessly, the green one will stand still and breathe fire, and the blue one will jump around aimlessly.

As in Mario Party Advance, there can be 99 of them on the screen at once.

Super Mario: Elemental Journey

Koopa Kid used to be Bowser's son figure until Bowser Jr. came into the picture and he was seemingly forgotten about. Koopa Kid now wants to be a hero and help Mario and his friends.

After a long absence, Koopa Kid returns in Super Mario: Elemental Journey as a secret unlockable character. When the player defeats the Earth Baron, Nega Slantio, Koopa Kid becomes playable. Koopa Kid can breathe fire for a short amount of time before burning out and his ground stomps have a larger radius. He is surprisingly kind of fast but a lot of his moves reset his momentum.

Mario Kart: V² Circuit

Koopa Kid appears as a starting racer in Mario Kart: V² Circuit. He is a lightweight with a small size. He has good speed, poor acceleration, slightly above average handling and slightly above good traction.

Super Smash Bros. Galactic Battle

Koopa Kid is a playable character in Super Smash Bros. Galactic Battle via a palette swap of Bowser Jr. Koopa Kid, like the other characters switching out for Bowser Jr., has three of his palette swaps, being the Red, Green, and Blue Koopa Kids from the Mario Party games.

Much like Bowser Jr.the KoopalingsBoom-Boom, and Pom-Pom, Koopa Kid is encountered via several mid-boss battles in The Elemental Labyrinth. His role is unknown at the moment.

Super Mario Maker Cloud

Koopa Kid appears as a boss option. He primarily throws toy hammers, which bounce along the ground in a few arcs before stopping. In the SMB1 style they will simply disappear afterwards, but in other styles they can be picked up and thrown back at Koopa Kid. In between toy hammer throws, he spits a yellow fireball that curves straight down in front of him. He takes three stomps or ten elemental projectiles to defeat, with a hit from a toy hammer counting as a stomp. He shares a placement limit with Bowser Jr. - up to ten of them can be placed.



Used to be regarded as a son by Bowser, however this seemed like less and less the actual case. As he made more appearances, he was regarded to as a henchmen before being entirely forgotten. In Super Mario: Elemental Journey he was revealed to be a DNA son of Bowser, which explains more or less how there came to be so many clones of him. Also in said game, Koopa Kid becomes a hero to seemingly spite Bowser.

Bowser Jr.

Barely knows him but hates his guts for replacing him.


Looks up to him and his friends as an example of how to become a hero. In Super Mario: Elemental Journey, Koopa Kid attempts to copy a lot of his and Cosmetta's poses.


Koopa Kid had a precarious crush on Cosmetta that has since faded after the events of Super Mario: Elemental Journey. He acts as a friend now, as both of them come from "evil" backgrounds but have since become more heroic and are both looking for their bigger purpose now that their evil past is behind them.


See also

Mario Kart Silver

Playable Characters

Default Characters
ToadToadetteBaby MarioBaby LuigiKoopa TroopaLakituMarioLuigiPrincess PeachYoshiBirdoDiddy KongBowserDonkey KongWarioWaluigiKing BooWigglerMii

Unlockable Characters
Baby PeachBaby DaisyShy GuyKoopa ParatroopaDry BonesBooGoombaToadsworthPrincess DaisyBowser Jr.NabbitNokiMonaDixie KongKamekProfessor E. GaddRosalinaPetey PiranhaDry BowserKing Bob-OmbPiantaCranky KongBoom BoomPom Pom

Downloadable Characters
Surprise Pack MIPSWhittleAshleyHammer Bro.KritterPauline
Heroes Pack Baby WarioBaby Donkey KongTimer the TigerNeilRobotic Operating BuddyMr. Game & Watch
Villains Pack ShroobKoopa KidDimentioMouserMetal MarioAntasma
Koopalings Pack Ludwig von KoopaRoy KoopaWendy O. KoopaMorton Koopa Jr.Iggy KoopaLemmy KoopaLarry Koopa


Red ShellRed Shell TrioGreen ShellGreen Shell TrioBanana PeelBanana Peel TrioBlooperBob-OmbFire FlowerStarLightning BoltBullet BillBlue Spiny ShellMushroomMushroom TrioGolden MushroomPOW BlockRed BooWhimpFreezieBowser's ShellMega MushroomMini MushroomDash PepperPropeller MushroomYoshi EggFake Item BoxOil BarrelHeartSuper LeafTweesterBumperPotted Piranha PlantBoomerang Flower

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