List of bosses

In video games, bosses are powerful enemies found in levels. They are usually fought at the end of the level, world, or chapter. Usually, the player cannot advance to the next level until the boss is defeated. However, there are certain exceptions to this rule. Bosses are usually much harder to defeat than all the other enemies in that level or world.

Mini-Bosses or Mid-Bosses are bosses that are found in the middle of the level and are usually not as strong as a boss.

Final Bosses are the last bosses that are fought in a game and usually the hardest enemy fought in the entire game. Once the Final Boss or Bosses have been defeated, the game is finished. However, there have been times when the game does not immediately end and the player may need to complete an extra task first (example: Mario & Luigi: Superstar Saga).

Optional Bosses are bosses that exist in the game, but that do not need to be defeated for the player to beat the game. Sometimes, Optional Bosses are even harder than Final Bosses (like The Master and Bonetail).

Here is a list of all of the Bosses that appear in the Mario series, with the first game in which they appeared as boss next to their name. Final Bosses are in bold, Optional Bosses are in italics.

A

 * Anti Guy – ''Paper Mario
 * Akuman – ''Wario's Woods
 * Appleby – ''Dr. Mario 64
 * Aqualea – ''Wario's Woods
 * Armored Harriers – ''Paper Mario: The Thousand-Year Door
 * Army Hammer Bro. – ''Super Princess Peach
 * Atomic Boo – ''Paper Mario: The Thousand-Year Door
 * Axem Black – ''Super Mario RPG: Legend of the Seven Stars
 * Axem Green – ''Super Mario RPG: Legend of the Seven Stars
 * Axem Pink – ''Super Mario RPG: Legend of the Seven Stars
 * Axem Rangers – ''Super Mario RPG: Legend of the Seven Stars
 * Axem Red – ''Super Mario RPG: Legend of the Seven Stars
 * Axem Yellow – ''Super Mario RPG: Legend of the Seven Stars

B

 * Baby Bowser – ''Super Mario World 2: Yoshi's Island
 * Baron Brrr – ''Super Mario Galaxy
 * Beldam – ''Paper Mario: The Thousand-Year Door
 * Belome – ''Super Mario RPG: Legend of the Seven Stars
 * Bessie Bass – ''Yoshi's Island DS
 * Big Blooper – ''Super Paper Mario
 * Big Bob-omb – ''Super Mario 64
 * Big Boo – ''Super Mario World
 * Big Bully – ''Super Mario 64
 * Big Bungee Piranha – ''Yoshi's Island DS
 * Big Burt Bros. – ''Yoshi's Island DS
 * Big Guy the Stilted – ''Yoshi's Island DS
 * Big Lantern Ghost – ''Paper Mario
 * Big Mr. I – ''Super Mario 64
 * Biokinton – ''Super Mario Land
 * Birdo – ''Super Mario Bros. 2
 * Black Jewel – ''Wario World
 * Blizzaurus – ''Super Princess Peach
 * Blooper – ''Super Mario Bros.
 * Bogmire – ''Luigi's Mansion
 * Bonechill – ''Super Paper Mario
 * Bonetail – ''Paper Mario: The Thousand-Year Door
 * Boolossus – ''Luigi's Mansion
 * Boom Boom – ''Super Mario Bros. 3
 * Boomer – ''Super Mario RPG: Legend of the Seven Stars
 * Boomerang Bro. – ''Yoshi's Safari
 * Booster – ''Super Mario RPG: Legend of the Seven Stars
 * Bouldergeist – ''Super Mario Galaxy
 * Bowletta – ''Mario & Luigi: Superstar Saga
 * Bowser – ''Super Mario Bros.
 * Bowser??? – ''Paper Mario
 * Bowser Clone – ''Super Mario RPG: Legend of the Seven Stars
 * Bowser X – ''Mario & Luigi: Bowser's Inside Story
 * Bowser Jr. – ''Super Mario Sunshine
 * Bowser Jr.'s Boomsday Machine – Super Mario Galaxy 2
 * Bowyer – ''Super Mario RPG: Legend of the Seven Stars
 * Box Boy – ''Super Mario RPG: Legend of the Seven Stars
 * Brawl Doll – ''Wario World
 * Brobot – ''Super Paper Mario
 * Brobot L-Type – ''Super Paper Mario
 * Broggy – ''Mario & Luigi: Bowser's Inside Story
 * Broque – ''Mario & Luigi: Bowser's Inside Story
 * Bugaboom – ''Super Mario Galaxy
 * Bundt – ''Super Mario RPG: Legend of the Seven Stars
 * Buzzar – ''Paper Mario

C

 * Cackletta – ''Mario & Luigi: Superstar Saga
 * Captain Skull – ''Wario World
 * Captain Syrup – ''Wario Land
 * Carlton – ''Wario's Woods
 * Chan – ''Paper Mario
 * Chargin' Chuck – ''Yoshi's Safari
 * Chauncey – ''Luigi's Mansion
 * Cheep-Cheep Pufferfish – ''Mario Pinball Land
 * Chef Torte – ''Super Mario RPG: Legend of the Seven Stars
 * Cheepskipper – ''New Super Mario Bros.
 * Chester – ''Super Mario RPG: Legend of the Seven Stars
 * Chestnut King – ''Paper Mario: The Thousand-Year Door
 * Chief Chilly – ''Super Mario 64 DS
 * Chill Bully – ''Super Mario 64
 * Chucklissa – ''Mario & Luigi: Superstar Saga
 * Chuckolator – ''Mario & Luigi: Superstar Saga
 * Clawgrip – ''Super Mario Bros. 2
 * Cloaker – ''Super Mario RPG: Legend of the Seven Stars
 * Cloud N. Candy – ''Yoshi's Story
 * Cloudjin – ''Yoshi's Story
 * Clown-a-Round – ''Wario World
 * Cortez – ''Paper Mario: The Thousand-Year Door
 * Count Bleck – ''Super Paper Mario
 * Count Down – ''Super Mario RPG: Legend of the Seven Stars
 * Crazy Hand – ''Super Smash Bros. Melee
 * Croco – ''Super Mario RPG: Legend of the Seven Stars
 * Culex – ''Super Mario RPG: Legend of the Seven Stars
 * Czar Dragon – ''Super Mario RPG: Legend of the Seven Stars

D

 * Dark Bones – ''Paper Mario: The Thousand-Year Door
 * Dark Bowser – Mario & Luigi: Bowser's Inside Story
 * Dark Fawful – Mario & Luigi: Bowser's Inside Story
 * Dark Fawful Bug – Mario & Luigi: Bowser's Inside Story
 * Dark Luigi-Super Paper Mario
 * Dark Mario-Super Paper Mario
 * Dark Peach-Super Paper Mario
 * De Buu – ''Wario's Woods
 * Dedar – ''Wario's Woods
 * Digga-Leg – Super Mario Galaxy 2
 * Dimentio – ''Super Paper Mario
 * Ding-A-Ling – ''Super Mario RPG: Legend of the Seven Stars
 * Dino Piranha – ''Super Mario Galaxy
 * Dinomighty – ''Wario World
 * Dodo – ''Super Mario RPG: Legend of the Seven Stars
 * Domino – ''Super Mario RPG: Legend of the Seven Stars
 * Don Bongo – ''Yoshi's Story
 * Donkey Kong – ''Donkey Kong
 * Doopliss – ''Paper Mario: The Thousand-Year Door
 * Dorago – ''Wario's Woods
 * Dragohoho – ''Mario & Luigi: Superstar Saga
 * Dragonzamasu – ''Super Mario Land
 * Dry Bowser – ''New Super Mario Bros.
 * Dual Dragon – ''Wario World
 * Duon – ''Super Smash Bros. Brawl
 * Durmite – Mario & Luigi: Bowser's Inside Story

E

 * Earth Link – ''Super Mario RPG: Legend of the Seven Stars
 * Elder Princess Shroob – ''Mario & Luigi: Partners in Time
 * Elder Shrooboid – ''Mario & Luigi: Partners in Time
 * Electro Blooper – ''Paper Mario
 * Exor – ''Super Mario RPG: Legend of the Seven Stars
 * Eyerok – ''Super Mario 64

F

 * Factory Chief – ''Super Mario RPG: Legend of the Seven Stars
 * False Bowser – ''Super Mario Bros.
 * False Wario – ''Wario's Woods
 * Fautso – ''Super Mario RPG: Legend of the Seven Stars
 * Fawful – ''Mario & Luigi: Superstar Saga
 * Fire Gobblegut - ''Super Mario Galaxy 2
 * Fire Snake – ''Yoshi's Safari
 * Fiery Dino Piranha - Super Mario Galaxy
 * Foreman Spike – ''Wrecking Crew
 * Fracktail – ''Super Paper Mario
 * Francis – ''Super Paper Mario
 * Fryguy – ''Super Mario Bros. 2
 * Fuzzy – ''Paper Mario
 * Fuzzy Horde – ''Paper Mario: The Thousand-Year Door

G

 * Galrog – ''Wario's Woods
 * Galleom – ''Super Smash Bros. Brawl
 * General Guy – ''Paper Mario
 * Giant Bird – ''Super Mario Land 2: Six Golden Coins
 * Giant Bowser - New Super Mario Bros. Wii
 * Giant Diddy Kong – ''Super Smash Bros. Brawl
 * Giga Bowser – ''Super Smash Bros. Melee
 * Giga Lakitu – ''Super Mario Galaxy 2
 * Gilbert the Gooey – ''Yoshi's Island DS
 * Glamdozer - Super Mario Galaxy 2
 * Gloomtail – ''Paper Mario: The Thousand-Year Door
 * Gobblegut – ''Super Mario Galaxy 2
 * Gold Fuzzy – ''Paper Mario: The Thousand-Year Door
 * Goomba – ''Super Mario Bros.
 * Goomboss – ''Paper Mario
 * Gooper Blooper – ''Super Mario Sunshine
 * Goura – ''Wario's Woods
 * Grate Guy – ''Super Mario RPG: Legend of the Seven Stars
 * Greenfist – ''Wario World
 * Grubba – ''Paper Mario: The Thousand-Year Door
 * Gunyolk – ''Super Mario RPG: Legend of the Seven Stars
 * Gus – ''Paper Mario: The Thousand-Year Door

H

 * Hammer Bro. – ''Super Mario Bros.
 * Harley Quin – ''Wario's Woods
 * Harry Hare – ''Wario's Woods
 * Hawkmouth – ''Super Mario Bros. 2
 * Hector the Reflector – ''Yoshi's Island DS
 * Hermie III – ''Mario & Luigi: Superstar Saga
 * Hidon – ''Super Mario RPG: Legend of the Seven Stars
 * Hiyoihoi – ''Super Mario Land
 * Hoo – ''Super Princess Peach
 * Hoohoolia – ''Mario & Luigi: Superstar Saga
 * Hoohooros – ''Mario & Luigi: Superstar Saga
 * Hookbill the Koopa – ''Super Mario World 2: Yoshi's Island
 * Hooktail – ''Paper Mario: The Thousand-Year Door
 * Hot Roderick – ''Wario Land: Shake It!

I

 * Iggy Koopa – ''Super Mario Bros. 3
 * Inviso – ''Yoshi's Story
 * Ironsider – ''Wario World

J

 * Jinx – ''Super Mario RPG: Legend of the Seven Stars
 * Jonathan Jones – ''Super Mario RPG: Legend of the Seven Stars
 * Jojora – ''Mario & Luigi: Superstar Saga
 * Jr. Troopa – ''Paper Mario
 * Junior Shrooboid – ''Mario & Luigi: Partners in Time
 * Junker – ''Mario & Luigi: Bowser's Inside Story

K

 * Kamella – ''Super Mario Galaxy
 * Kamek – ''Super Mario World 2: Yoshi's Island
 * Kammy Koopa – ''Paper Mario
 * Katsini – ''Wario's Woods
 * Kent C. Koopa – Paper Mario
 * King Bubble – Wario Land II
 * King Boo – ''Luigi's Mansion
 * King Boo (Super Mario Sunshine)-Super Mario Sunshine
 * King Calamari – ''Super Mario RPG: Legend of the Seven Stars
 * King Croacus IV – ''Super Paper Mario
 * King Kaliente – ''Super Mario Galaxy
 * King Totomesu – ''Super Mario Land
 * King Tut – ''Mario Pinball Land
 * Kingfin – ''Super Mario Galaxy
 * Knife Guy – ''Super Mario RPG: Legend of the Seven Stars
 * Koopa Bros. – ''Paper Mario
 * Red Ninjakoopa
 * Green Ninjakoopa
 * Yellow Ninjakoopa
 * Black Ninjakoopa
 * Koopalings – ''Super Mario Bros. 3

L

 * L33t Hamm3r Broz. – Mario & Luigi: Partners in Time
 * Lakilester – Paper Mario
 * Lakithunder – New Super Mario Bros.
 * Larry Koopa – Super Mario Bros. 3
 * Lava Piranha – Paper Mario
 * Lava Bud – Paper Mario
 * Lemmy Koopa – Super Mario Bros. 3
 * Lizardon – Wario's Woods
 * Lord Crump – Paper Mario: The Thousand-Year Door
 * Ludwig Von Koopa – Super Mario Bros. 3

M

 * Macho Grubba – Paper Mario: The Thousand-Year Door
 * Mack – Super Mario RPG: Legend of the Seven Stars
 * Magnus Von Grapple/Magnus Von Grapple 2.0 – ''Paper Mario: The Thousand-Year Door
 * Major Burrows - Super Mario Galaxy
 * Mangylox – Wario's Woods
 * Marilyn – Paper Mario: The Thousand-Year Door
 * The Master-Paper Mario
 * Master Hand – Super Smash Bros.
 * Mean Emcee – Wario World
 * Mega Goomba – New Super Mario Bros.
 * Megaleg – Super Mario Galaxy
 * Megasmilax – Super Mario RPG: Legend of the Seven Stars
 * Meidou – Wario's Woods
 * Mecha Bowser – Super Mario Sunshine
 * Megahammer - Super Mario Galaxy 2
 * Meta Ridley – Super Smash Bros. Brawl
 * Metal Luigi – Super Smash Bros. Melee
 * Metal Mario – Super Mario 64
 * Midbus – ''Mario and Luigi:Bowser's Inside Story
 * Mimi – Super Paper Mario
 * Moltz the Very Goonie – Yoshi's Island DS
 * Mom Piranha-Mario and Luigi:Superstar Saga
 * Monsieur Boo – Wario's Woods
 * Monstar – Paper Mario
 * Monty Tank – New Super Mario Bros.
 * Morton Koopa Jr. – Super Mario Bros. 3
 * Mouser – Super Mario Bros. 2
 * Mr. L – Super Paper Mario
 * Mummipokey – New Super Mario Bros.

N

 * Naval Piranha – Super Mario World 2: Yoshi's Island

O

 * O'Chunks – Super Paper Mario
 * Octopot – Yoshi's Safari
 * Octopus – Super Mario Land 2: Six Golden Coins
 * Oholina – Mario & Luigi: Superstar Saga

P

 * Parrator – Wario's Woods
 * Peewee Piranha – ''Super Mario Galaxy 2
 * Petey Piranha – Super Mario Sunshine
 * Phantamanta – Super Mario Sunshine
 * Piranha Bean – Mario & Luigi: Superstar Saga
 * Porky Minch – Super Smash Bros. Brawl
 * Popple – Mario & Luigi: Superstar Saga
 * Prince Froggy – Super Mario World 2: Yoshi's Island
 * Prince Pikante - Super Mario Galaxy 2
 * Princess Shroob – Mario & Luigi: Partners in Time
 * Priscilla the Peckish – Yoshi's Island DS
 * Punchinello– Super Mario RPG: Legend of the Seven Stars

Q

 * Queen Bean – Mario & Luigi: Superstar Saga

R

 * Rawk Hawk – Paper Mario: The Thousand-Year Door
 * Rayquaza –  Super Smash Bros. Brawl
 * Razor – Wario's Woods
 * Red-Brief J – Wario World
 * Reznor – Super Mario World
 * Ricky - Super Mario Land 2: Six Golden Coins
 * Ridley - Super Smash Bros. Brawl
 * Robirdo – Super Mario Advance
 * Rollodillo - Super Mario Galaxy 2
 * Rookie – Mario & Luigi: Superstar Saga
 * Roy Koopa – Super Mario Bros. 3

S

 * Sam Spook – Wario's Woods
 * Sarissa – Wario's Woods
 * Sandworm – Wario World
 * Shadoo – Super Paper Mario
 * Shadow Mario – Super Mario Sunshine
 * Shadow Queen – Paper Mario: The Thousand-Year Door
 * Shake King    – Wario Land: The Shake Dimension
 * Scutlet – Mario & Luigi: Bowser's Inside Story
 * Shiisa – Wario's Woods
 * Shrooboid Brat – Mario & Luigi: Partners in Time
 * Shrowser– Mario & Luigi: Partners in Time
 * Sir Grodus   – Paper Mario: The Thousand-Year Door
 * Six-Face Sal – Yoshi's Island DS
 * Smithy – Super Mario RPG: Legend of the Seven Stars
 * Smorg – Paper Mario: The Thousand-Year Door
 * Sorbetti – Super Mario Galaxy 2
 * Spideraticus – Wario World
 * Spike? – Paper Mario
 * Squizzard – Super Mario Galaxy 2
 * Super Dimentio – Super Paper Mario
 * Super Stilt Guy – Yoshi's Island DS
 * Sven – Wario's Woods
 * Swiggler – Mario & Luigi: Partners in Time

T

 * Tabuu – Super Smash Bros. Brawl
 * Tad Rock – Wario's Woods
 * Tarantox – Super Mario Galaxy
 * Tatanga – Super Mario Land
 * Teeheena – Mario & Luigi: Superstar Saga
 * Terrormisu – Wario: Master of Disguise
 * Thak – Wario's Woods
 * The Master – Paper Mario
 * The Three Little Pigheads – Super Mario Land 2: 6 Golden Coins
 * Tolstar – Mario & Luigi: Superstar Saga
 * Topmaniac - Super Mario Galaxy
 * Trunkle – Mario & Luigi: Superstar Saga
 * Tryclyde – Super Mario Bros. 2
 * Tubba Blubba's Heart – Paper Mario
 * Tubba Blubba – Paper Mario

U

 * Underchomp – Super Paper Mario

V

 * Vivian – Paper Mario: The Thousand-Year Door

W

 * Waluigi – Mario Tennis
 * Wario – Super Mario Land 2: 6 Golden Coins
 * Wart – Super Mario Bros. 2
 * Wendy O. Koopa – Super Mario Bros. 3
 * Whomp King – Super Mario 64
 * Wiggler – Super Mario World
 * Winter Windster – Wario World
 * Wisdurm – Mario & Luigi: Bowser's Inside Story
 * Witchella – Super Mario Land 2: 6 Golden Coins
 * Wracktail – Super Paper Mario

Y

 * Yaridovich – Super Mario RPG: Legend of the Seven Stars

Z

 * Zombone - Super Mario RPG: Legend of the Seven Stars