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The Koopa Bros. (Japanese: ノコブロス, Noko Burosu) are the bosses of Chapter 1 of Paper Mario, and the second beatable boss in the game. They are a quartet of ninja-like Koopas who are always trying to act cool. They work for Bowser. Their names, corresponding to the color of their shells, are Red, Black, Yellow, and Green. Red is their leader.


The Koopa Bros. were chosen by Bowser to guard Eldstar, the first Star Spirit. They kept him inside their fortress, the Koopa Bros. Fortress. They also locked Bombette the Bob-omb up in a cell because while they were bossing the Bob-ombs around and making them do all the work around the fortress, Bombette exploded next to them. They locked the other Bob-ombs up with her to prevent a Bob-omb rebellion.

To prevent Mario from reaching their fortress, the Koopa Bros. disguised themselves as Toads and blocked the road to Pleasant Path, but Merlon revealed their true forms and they ran. Black told Red when Mario arrived at the fortress. Green locked keys and items inside cells so Mario couldn't get them, and Yellow set a trap for Mario to fall into the jail cell. When Mario reached the top of the fortress, Black, Yellow, and Green set three bill blasters on Mario, but he destroyed them and fought the Koopa Bros. inside a Bowser tank, trying to make him think that they were really Bowser. The tank was destroyed, and the Koopa Bros. fought Mario. Once defeated, they fell over the edge and into the prison cell, which was patched up from when Bombette blew up one of the walls.

Despite this, they somehow managed to escape, and became the defense for the final guard door in Bowser's Castle. However, before they could fight Mario, Jr. Troopa appeared and defeated them. They have not been seen since (except in the credits). In fact, it is unknown if they survived.

In the credits parade, the Koopa Bros. are seen on top of a parade car resembling the Bowser tank, and are blown up by four Bob-ombs.


The Koopa Brothers

The Koopa Bros. start out inside a Bowser tank with 10 HP, an attack power of 1, and a defense of 1. Mario must hammer him and have Kooper or Bombette attack him. The tank has 10 HP. Once the tank is destroyed, the Koopa Bros. will appear. Whoever attacks next depends on who attacked last: If it was going to be the fake Bowser's turn, it will then be the Koopa Bros.' turn. If Mario can defeat the Koopa Bros. on a turn before his partner attacks, the partner will be the next one to attack. The Koopa Bros. each have 5 HP, and are standing on top of each other. It takes a few attacks to knock them down, but Bombette's Bomb attack only has to hit them once to knock them over, flipping them on their shells. After this, they can be treated like regular Koopas, but can jump on top of each other again. Once all of them are defeated, Mario wins.




  • It is likely that the Koopa Bros. are based off the Axem Rangers, as both groups had names corresponding to their colors, with Red as the leader.
  • They are clearly a parody of the Teenage Mutant Ninja Turtles.


           TheMario.png Villains

Koopa Troop
Bowser | Baby Bowser | Bowser Jr. | Captain Goomba | Koopalings (Larry Koopa | Morton Koopa Jr. | Wendy O. Koopa | Iggy Koopa | Roy Koopa | Lemmy Koopa | Ludwig Von Koopa) | Kamek | King Boo | Boom Boom | Pom Pom | Reznor | Mega Goomba | Lakithunder | Mummipokey | Burt the Bashful | Salvo the Slime | Roger the Potted Ghost | Koopa Kids | Hoo | Blizzaurus | Army Hammer Bro | Elite Trio
Super Mario 64
King Bob-omb | Whomp King | Goomba King
Galaxy Armada
King Kaliente | Bugaboom | Peewee Piranha | Topmaniac | Bouldergeist | Dino Piranha | Major Burrows | Prince Pikante | Rollodillo | Glamdozer | Giga Lakitu | Petey Piranha | Gobblegut
Super Mario 3D World
Super Mario Odyssey
Mechawiggler | Broodals (Topper | Harriet | Spewart | Rango) | Madame Broode | Ruined Dragon | Cookatiel | Torkdrift
Goombas | Boos | Koopa Troopas | Chain Chomps | Hammer Bros. | Shy Guys | Magikoopas | Pokeys | Lakitus | Toadies | Bob-ombs | Piranha Plants | Bloopers | Wigglers
8 Bit Club
Wart | Mouser | Tryclyde | Fryguy | Clawgrip | Birdo | Shy Guys
Smithy Gang
Smithy | Exor | Mack | Bowyer | Yaridovich | Axem Rangers | Blade | Count Down | Domino
Beanbean Kingdom
Cackletta | Fawful | Dark Star | Midbus | Fawful Express | Fawful Mountain | Super Peach's Castle of Fury | Crawful | Snawful | Chain Chawful | Fawflant | Fawful Guy | Fawfulcopter | Fawflopper | Mawful Mole | Mechawful
Popple | Rookie | Beanies | Mechawful | Sharpea | Troopea | Beanerang Bro | Clumphs | Lakipea
Elder Princess Shroob | Princess Shroob | Sunnycide
Antasma | Belome | Best Fitness Friends | Big Guy the Stilted | Black Jewel | Booster | Bowser (USA) | Chuckolator | Count Cannoli | Croco | Culex | Dodo | Donkey Kong | Donkey Kong (Mario VS Donkey Kong) | Draggadon | Foreman Spike | Gooper Blooper | Grouchy Possessor | Harsh Possessor | Jojora | Kaptain Skurvy | Kent C. Koopa | King K. Rool | Kritters | Lucien | Mario | MegaBug | Mollusque-Lancuer | Nabbit | Overset Possessor | Peps | Phantamanta | Portrait Ghosts: (Neville | Chauncey | Bogmire | Biff Atlas | Boolossus | Sir Weston | Vincent Van Gore) | Rabbids: (Ziggies | Phantom of the Bwahpera | Rabbid Kong) | Punchinello | Ricky | Rudy the Clown | Sabasa | Shake King | Shrewd Possessor | Smorg | Squizzard | Tatanga | Three Little Pigheads | Tolstar | Tough Possessor | Tower Power Pokey | Valentina | Viruses | Waluigi | Wario | Watinga | Wingo | Yellow Belly/Helio

Koopa Troop
Paper Bowser | Paper Bowser Jr. | Paper Koopalings (Larry Koopa | Morton Koopa Jr. | Wendy O. Koopa | Iggy Koopa | Roy Koopa | Lemmy Koopa | Ludwig von Koopa) | Paper Kamek | Kammy Koopa | Paper Petey Piranha | Goomba King | Red & Blue Goomba | Koopa Bros | Tutankoopa | Tubba Blubba | General Guy | Lava Piranha | Huff N. Puff | Crystal King
Goombas | Boos | Koopa Troopas | Chain Chomps | Hammer Bros. | Shy Guys | Magikoopas | Bob-ombs | Piranha Plants
Secret Society of X-Nauts
Sir Grodus | Lord Crump | Shadow Sirens | Doopliss | Shadow Queen
Count Bleck's Minions
Count Bleck | Nastasia | O'Chunks | Mimi | Dimentio | Mr. L
Folded Soldiers
King Olly | Handaconda | Paper Macho Soldiers
Legion of Stationery
Colored Pencils | Rubber Band | Hole Punch | Tape | Scissors | Stapler
Jr. Troopa | Hooktail | Rawk Hawk | Grubba | Cortez | Gloomtail | King Croacus | Shadoo | Wracktail | Skellobits | Bonechill | Count Bleck's Father | Francis | Mizzter Blizzard | Lamp Scam Snifit


President Koopa | Lena | Iggy and Spike

Big Bad Wolf | Count Koopula | "Crime Wave" Clyde | King Koopa | Robot Princess | Wizardheimer
King Koopa (OVA) | King Koopa (Amada)

See Also
Donkey Kong Villains | Luigi's Mansion Villains | Wario Villains