Mario franchise strategy guide/Species
A
- Albatoss—A red bird that drops bombs in Super Mario Bros. 2. If Mario lands onto its back, he can ride an Albatoss around the stage.
- Albino Dino—An arctic variety of the Dino Rhino that appears in the Crystal Palace in Paper Mario.
- Alley Rat—A verminous enemy that appears in the Sunken Ship stage of Super Mario RPG. It is capable of poisoning party members.
- Amanita—A mushroom enemy that appears in the Forest Maze in Super Mario RPG. It often disguises itself as a standard mushroom.
- Amazee Dayzee—A golden walking flower that appears in Super Mario World 2: Yoshi's Island, Paper Mario, Paper Mario: The Thousand-Year Door, Yoshi's Island DS, and Super Paper Mario. In the three Paper Mario titles, they are incredibly elusive and flee from battle quickly. They are also very powerful when they choose to fight.
- Amazing Flyin' Hammer Bro.—A Hammer Brother that rides winged blocks. It appears in Super Mario World and Super Princess Peach. Unlike other Hammer Brothers, it does not seem to appear in pairs.
- Ameboid—An alien creature that appears in the Smithy Factory in Super Mario RPG. If not defeated quickly, it will multiply into five.
- Amp—An electric sphere that circles objects and shocks anybody who makes direct contact. It appears in Super Mario 64, the Mario Party series, and New Super Mario Bros..
- Angry Sun—An evil incarnation of the sun that lunges at Mario in the desert of Super Mario Bros. 3. In Mario Kart DS, the Angry Sun appears in the Desert Hills course and spits fire balls at the racers.
- Anti Guy—A gray Shy Guy that stands guard in Shy Guy's Toybox in Paper Mario. It is also known as "Deadly Guy", due to the severity of the damage that his attacks inflict.
- Anuboo—A black ghost that resembles the Egyptian god Anubis. They are found in Teehee Valley in Mario and Luigi: Superstar Saga. Anuboos teleport across the overworld, while shooting lasers from their eyes in battle.
- Aqua Lakitu—A Lakitu that wears a snorkel in Super Mario World 2: Yoshi's Island. It throws Spinies when emerging from water.
- Arachne—A giant yellow arachnid that patrols Rose Way in Super Mario RPG. Its attacks are poisonous.
- Arantula—A more powerful, black-and-red version of Pider. It lives toward the bottom of the Pit of 100 Trials in Paper Mario: The Thousand-Year Door.
- Armored Ant—A stronger, heat-resistant version of Shogun. It patrols the Barrel Volcano in Super Mario RPG: Legend of the Seven Stars.
- Artichoker—A monster that disguises itself as a plant. It hides in Booster Pass in Super Mario RPG: Legend of the Seven Stars.
- Atomic Boo—A giant Boo that is composed of many smaller Boos. It appears in Paper Mario: The Thousand Year Door and Super Paper Mario.
- Autobomb—A cannon-like machine ridden by Shy Guys in Super Mario Bros. 2. It is able to launch fireballs.
B
- Badge Bandit—A purple Bandit that likes to steal badges. It is found in the Pit of 100 Trials in Paper Mario: The Thousand-Year Door.
- Bahamutt—A red dragon summoned by Chester and Magikoopa. It appears in Bowser's Keep in Super Mario RPG. It is possibly a parody of Bahamut from the Final Fantasy series.
- Bald Cleft—A spikeless Cleft that appears guards the Shhwonk Fortress in Paper Mario: The Thousand-Year Door. It also appears in several areas in Super Paper Mario.
- Ball 'N' Chain—A giant spiked ball attached to a chain in Super Mario World.It slowly spins around a square block.
- Bandana Blue—An elite shark lackey of Jonathan Jones. Resides in the Sunken Ship in Super Mario RPG.
- Bandana Red—An amateur shark lackey of Jonathan Jones. Resides in the Sunken Ship in Super Mario RPG.
- Bandit—A masked thief that attempts to steal such valuables as coins or a baby that is riding on Yoshi's back. They appear in Super Mario World 2: Yoshi's Island, Paper Mario, Paper Mario: The Thousand-Year Door, Mario Party 7, and Yoshi's Island DS.
- Banzai Bill—A giant-sized grinning Bullet Bill that does not appear to come from any sort of Blaster. It appears in Super Mario World, Super Princess Peach and New Super Mario Bros..
- Barney Bubble—A purple critter that, when stepped, emits bubbles. It appears in Super Mario World 2: Yoshi's Island. His name is a parody of Barney Rubble from The Flintstones.
- Baron Von Zeppelin—A balloon that carries such items as keys, crates, and missiles. It appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Barribad—A circular enemy that resembles a Yux and attacks using energy rings. It can also generate a forcefield around itself. It appears in Super Paper Mario.
- Batadon—A flying stone head in Super Mario Land that attacks by swooping at Mario.
- Battle Beetle—A large, hopping beetle in Super Mario Land 2.
- Beach Koopa—A Koopa without a shell. It first appeared in Super Mario World and appeared in quite a few games since.
- Beanie—An enemy bean that patrols Hoohoo Mountain in Mario and Luigi: Superstar Saga. It can also disguise itself as a Pestnut. It appears to be unable to swim and floats in water.
- Beanlet—Mischievous miniature beans that hide throughout Beanbean Castle Town. They appear in Mario and Luigi: Superstar Saga. They can be pets.
- Beezo—A spear-wielding, Shy Guy-derivative enemy that debuted in Super Mario Bros. 2. It also appears as "Shy Away" in Super Mario RPG, whose magical watering can gives life to Smilax and Megasmilax.
- Big Bandit—A boss among ordinary Bandits that steals items in addition to coins. It appears in Paper Mario: The Thousand-Year Door.
- Big Bertha—A giant Cheep Cheep and female counterpart to Boss Bass. It spouts small Cheep Cheeps from it's mouth and may swallow them again. It appears in Super Mario Bros. 3, Super Mario 64, and Mario Kart 64. It also appears in Booster Tower in Super Mario RPG as a Bullet Bill (Bill Blaster in battle mode).
- Big Boo—A giant ghost that is the boss for haunted houses in Super Mario World. It also appears in Kero Kero Sewers in Super Mario RPG and as a recurring boss in Big Boo's Haunt in Super Mario 64.
- Big Bully—A giant, black, sphere-shaped monster with horns that tries to knock Mario off of ledges. It appears as a boss in Lethal Lava Land in Super Mario 64.
- Bill Blaster—Stationary cannons that fire Bullet Bills at set intervals. They appear in most games that feature Bullet Bills, and their shape as well as their design has changed greatly throughout the series.
- Birdo—A reccuring boss character that debuted in Doki Doki Panic. Appears in several other games, including Wario's Woods, Super Mario RPG, and Mario & Luigi: Superstar Saga. Birdos can be pink, red, or green, and spits both eggs and fireballs through a tube-like extension on it's face.
- Birdy—Valentina's loyal avian servants that guard Nimbus Castle. They appear in Super Mario RPG.
- Blargg—A lava-dwelling beast that emerges when Mario or Yoshi draws near. It appears in Super Mario World, Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Blazing Shroob—A Shroob that has caught on fire inside the Thwomp Volcano. It appears in Mario & Luigi: Partners in Time.
- Blomeba—A floating blue robot that creates clones of itself to confuse enemies. It appears in Super Paper Mario
- Blooper—An enemy squid that first appeared in Super Mario Bros., and has appeared in the majority of Mario's games ever since.
- Blooper Baby—A miniature Blooper that appears in Super Mario Bros. 3, Paper Mario, and New Super Mario Bros..
- Blooper Nanny—A Blooper that is surrounded by Blooper Babies. It appears in Super Mario Bros. 3.
- Blow Hard—A cactus enemy that spits Needlenoses at Yoshi. It appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Bluebird—A stronger species of Birdy that patrols the corridors of Nimbus Castle. It appears in Super Mario RPG.
- Blue Koopa Paratroopa—A Paratroopa with a Blue shell that appears in various games, beginning with Super Mario World.
- Blue Koopa Troopa—A Koopa with a blue shell that appears in various games, starting with Super Mario World. It is seemingly more intelligent than the Red Koopa Troopa.
- Blue Yoshi—A Yoshi that is colored blue that first appeared in Super Mario World. When it has a Koopa Shell in it's mouth, it can fly for a short period of time.
- Blurp—A fish enemy that draws resemblance to Cheep Cheep, and may in actuality be an alternate version of the species. It appears in Super Mario World and Super Princess Peach.
- Bob-omb—A walking bomb that first appeared in Super Mario Bros. 2, and has appeared in the majority of Mario's games since.
- Bob-omb Buddy—Friendly pink Bob-ombs that man cannons. They appear in Super Mario 64 and Mario Party Advance.
- Bob-ulk—A gargantuan purple Bob-omb that lights its fuse for a couple turns, then lets off a tremendous explosion. They are found near the bottom of the Pit of 100 Trials in Paper Mario: The Thousand-Year Door.
- Bombshell Bill—Explosive golden Bullet Bills that appear in the final dungeons in the Paper Mario series.
- Bombshell Bill Blaster—A golden Bill Blaster that fires Bombshell Bills in the Paper Mario series.
- Bony Beetle—A skeletal turtle-like creature with a spiked shell, which it hides in. Appears in Super Mario World and Paper Mario. After being stomped on, they will reform and continue walking.
- Boo—A shy ghost that debuted in Super Mario Bros. 3 and has appeared in the majority of Mario's games since. When it is being looked at, it will disappear, and only pursue the character when his or her back is turned.
- Boo Balloon—A ghastly balloon that expands after being hit by an egg in Super Mario World 2: Yoshi's Island. In New Super Mario Bros, it inflates when looked at and deflates when facing away.
- Boo Blah—An elastic, creeping ghost. It haunts Bigger Boo's Fort in Super Mario World 2: Yoshi's Island.
- Boo Buddy Block—A variant of the Boo that when faced, instead of vanishing, turns into a block that can be jumped or stepped on. Appears in Super Mario World.
- Boo Buddy Snake—A short group of Boo Buddies who bounce off of the walls, floor, and ceiling in Super Mario World.
- Boo Guy—Ghostly Shy Guys that appear in Super Mario World 2: Yoshi's Island, Mario & Luigi: Partners in Time, and Yoshi's Island DS.
- Boo Man Bluff—A blindfolded Boo that senses Yoshi's footsteps. It haunts Bigger Boo's Fort in Super Mario World 2: Yoshi's Island.
- Bookend—A possessed book that inhabits the haunted library of Big Boo's Haunt. It appears in Super Mario 64.
- Boomerang Brothers—The boomerang-throwing relatives of the Hammer Brothers. They appear in Super Mario Bros. 3, Mario & Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, New Super Mario Bros., Mario Superstar Baseball, and Super Paper Mario.
- Boom Guy—A Shy Guy with a Bullet Bill Blaster on it's head. If jumped on enough, the Blaster will come off, but Boom Guys can get replacements. Appears in Mario & Luigi: Partners in Time.
- Boss Bass—A giant Cheep Cheep and male counterpart to Big Bertha that chases Mario and attempts to swallow him whole. It appears in Super Mario Bros. 3, Super Mario 64 and Yoshi's Island DS.
- Bouncing Bullet Bill—An orange Bullet Bill that bounces off of walls. It appears in Super Mario World 2: Yoshi's Island.
- Bowling Goonie—An obese and flightless Goonie who can only move by rolling. It appears in Super Mario World 2: Yoshi's Island.
- Bristle—A spiked creature that can only be attacked from afar. It guards Shhwonk Fortress in Paper Mario: The Thousand-Year Door.
- Broozer—A boxing ghost that busts through blocks in New Super Mario Bros..
- Brown Yoshi—A Yoshi that is colored brown. It is one of the Yoshis that are playable in Super Mario World 2: Yoshi's Island.
- Bub-ulb—A friendly plant creature that grows seeds. They appear in Paper Mario and Paper Mario: The Thousand-Year Door.
- Bubble Bob-omb—A Bob-omb in a bubble. Appears in Super Mario World.
- Bubble Dayzee—A blue Crazee Dayzee that blows bubbles. It appears in Super Mario World 2: Yoshi's Island.
- Bulky Bob-omb—A massive pink Bob-omb with intense explosive power. It is found in Pirate's Grotto in Paper Mario: The Thousand-Year Door.
- Bullet Bill—A propelled bullet that debuted in Super Mario Bros. and has appeared in the majority of Mario's games since.
- Bully—A black, sphere-shaped monster with horns that tries to knock Mario off of ledges. It appears in Lethal Lava Land in Super Mario 64. Bully is also the name of a small bull-like enemy in Mario & Luigi: Partners in Time.
- Bumpty—Penguins that attempt to knock Yoshi off icy ledges in in Super Mario World 2: Yoshi's Island and Yoshi's Island DS. Friendly versions inhabit frosty villages in Paper Mario, and Paper Mario: The Thousand-Year Door.
- Bunbun—A wasp that wields a spear in Super Mario Land.
- Burt—A clown-like enemy that bounces off one another Burt's head. They appear in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Buster Beetle—An aggressive counterpart to Buzzy Beetle that hurls blocks at Mario. It appears in Super Mario Bros. 3.
- Buzzer—A wasp enemy that patrols the Forest Maze. It appears in Super Mario RPG: Legend of the Seven Stars.
- Buzzy Beetle—A cave-dwelling, hard-shelled insect that debuted in Super Mario Bros.. It since has appeared in Super Mario Bros. 3, Super Mario World, Paper Mario, Paper Mario: The Thousand-Year Door, Super Paper Mario, and New Super Mario Bros..
- Bzzap—A bee enemy that emerged from trees when Mario draws near. It appears in Flower Fields in Paper Mario.
C
- Cactus Jack—A bouncing cactus that falls from the sky in Super Mario World 2: Yoshi's Island.
- Caged Ghost—A large ghost that resides in sewer drains and spits Shy Guys. It appears in Super Mario World 2: Yoshi's Island.
- Carroboscis—A giant carrot enemy that attacks in Booster Pass. It appears in Super Mario RPG: Legend of the Seven Stars.
- Cataquack—A large, billed creature that lunges at Mario (or cart racers) and launches him/them skyward. It can be blue or red. Appears in Super Mario Sunshine and Mario Kart: Double Dash!!.
- Chain Chomp—A furious but restrained enemy that debuted in Super Mario Bros. 3. It has appeared in most of the games in the series since.
- Chain Chomplet—A juvenile version of a Chain Chomp that appears in Super Mario Sunshine.
- Chained Kong—A monkey with shackles on its arms. Resembles Donkey Kong.
- Chainsaw—A chainsaw that rides on a white line in Super Mario World.
- Chargin' Chuck—A soccer-, football-, and baseball-playing turtle that appears in Super Mario World. It wears football gear and is very sturdy.
- Cheep-Cheep—A fish creature that debuted in Super Mario Bros. and has appeared in most of the games in the series since. It has the ability to leap out of the water and through the air, and comes in many different colors.
- Cheep-Chomp—A giant purple Cheep-Cheep that attempts to swallow Mario in New Super Mario Bros..
- Chester—A treasure chest enemy and palette swap of Box Boy, Hidon, and Pandorite that appears in Super Mario RPG: Legend of the Seven Stars.
- Chewy—An aggressive, walking Piranha Plant variant that appears in Super Mario RPG: Legend of the Seven Stars.
- Chibibo—A small mushroom-like creature.
- Chicken—A flying bird that flys at Mario in Super Mario Land.
- Chomp Bro—A Hammer Brother variation that throws Chain Chomps at Mario and Luigi.
- Chomp Chomp—A variant of Chain Chomp that appears in Super Mario RPG: Legend of the Seven Stars.
- Chow—A mechanical dog that appears in Super Mario RPG: Legend of the Seven Stars. A palette swap of K-9.
- Chuck Guy—A variant of Shy Guy that inhabits the Chuckola Forest in Mario & Luigi: Superstar Saga. It attacks with spears.
- Chuckya—A large, purple ball-shaped enemy that attempts to grab Mario and toss him in Super Mario 64.
- Circling Boo Buddies—A group of Boos in Super Mario World that circle forever with a small gap in the circle.
- Cleft—A stone, spiked creature with a large chin, hence its name. Appears in Paper Mario and Paper Mario: The Thousand-Year Door.
- Cloud Drop—A tiny creature that floats up and down continuously through the air.
- Clubba—A mace-wielding turtle that appears in Paper Mario and Super Paper Mario. Not very bright, and known for sleeping.
- Clumph—A cavemen-like creature.
- Cobrat—A snake creature that spits projectiles while hopping out of jars and the desert sand in Super Mario Bros. 2 and Mario Pinball Land.
- Coconutter—A hostile coconut enemy that wields spears in Mario & Luigi: Partners in Time.
- Coin Bandit—A Bandit that holds a red coin in Super Mario World 2: Yoshi's Island. Becomes a normal Bandit (albeit with a different costume) when the coin is stolen from it.
- Crazee Dayzee—A living, walking flower that appears in Super Mario World 2: Yoshi's Island, Paper Mario, Paper Mario: The Thousand-Year Door, and Super Paper Mario. In the latter three games, it's attacks can cause sleep.
- Crazed Crate—A box that allows you to bounce around wildly in different directions in Super Mario 64. After three bounces, it breaks.
- Crook—A tiny thief that steals from Mario's party in Super Mario RPG: Legend of the Seven Stars. It is a palette swap of Sackit.
- Crowber—A crow enemy in New Super Mario Bros..
- Crusty—A crab creature in Super Mario RPG: Legend of the Seven Stars.
D
- Dancing Spear Guy—A Spear Guy that dances.
- Dangling Ghost—A ghost hanging from the ceiling that tries to snatch Baby Mario.
- Dark Barribad—A stronger, darkly colored variant of the Barribad that only appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Bones—A powerful, darkly colored Dry Bones that appears in Paper Mario: The Thousand-Year Door.
- Dark Boo—A purple, more powerful Boo found in the painting at the Poshley Sanctum in Paper Mario: The Thousand-Year Door; also appears in the Gritzy Caves of Mario & Luigi: Partners in Time.
- Dark Boomerang Bro.—A completely black version of the Boomerang Bro. that is very strong. It appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Bristle—A black, more powerful version of the Bristle that lives in the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
- Dark Cleft—A completely black Moon Cleft that is much more powerful. It only appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Craw—An evil spearthrower. One goes under the name Craw-Daddy at the Glitz Pit. Others can be found in the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
- Dark Cursya—A completely black Cursya in the Flopside Pit of 100 trials in Super Paper Mario. A common joke in the game is that it's impossible to differenciate between the several types of Dark Cursyas until you step on them.
- Dark Dark Boo—A completely black version of the Dark Boo that appears in the Flopside Pit of 100 Trials in Super Paper Mario. It attacks in the same ways that Dark Boos attack.
- Dark Dayzee—A completely black version of the Amazy Dayzee that is much more powerful. It only appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Fire Bro.—A completely black version of the Fire Bro. that is incredibly powerful. It only appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Goomba—A completely black Goomba in Super Paper Mario. It is only found in the Flopside Pit of 100 trials and is very powerful.
- Dark Hammer Bro.—A completely black version of the Hammer Bro. that is much stronger than a regular Hammer Bro. It appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Koopa—A purple-shelled Koopa that lives in darkness. Appears in Paper Mario and Paper Mario: The Thousand-Year Door. Another version appears in the Flopside Pit of 100 Trials in Super Paper Mario. This version is completely black and much more powerful.
- Dark Koopatrol—A Koopatrol with blue armor and red eyes. One goes under the name Koopinator in the Glitz Pit, and others can be found in the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door. Another version appears in the Flopside Pit of 100 Trials in Super Paper Mario. This version is completely black and much more powerful.
- Dark Lakitu—A Lakitu that rides on a dark cloud and throws Sky-Blue Spinies instead of normal ones. Located in the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
- Dark Longator—A completely black Longator that is much stronger. It only appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Magiblot—A completely black Magiblot that is very powerful. It only appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Magikoopa—A completely black Magikoopa that is much stronger than the average Magikoopa. It appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Megabite—A completely black Megabite that is more powerful than a normal Megabite. It appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Muth—A completely black Muth that is very strong. It only appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Ninjoe—A completely black Ninjoe that is very powerful. It only appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Paratroopa—A Dark Koopa with wings. Appears in Paper Mario: The Thousand-Year Door. Another version appears in the Flopside Pit of 100 Trials in Super Paper Mario. This version is completely black and much more powerful.
- Dark Spiny—A completely black Spiny. It is much more powerful that regular Spinies. It only appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Stone Buzzy—A completely black Stone Buzzy that is very powerful. It appears in the Flopside Pit of 100 Trials in Super Paper Mario.
- Dark Wizzerd—The weakest of the half-organic, half-mechanic creatures. It resides in the Palace of Shadow. Appears in Paper Mario: The Thousand-Year Door.
- Deep-Cheep—A green Cheep-Cheep, considerably more aggressive than the normal type, in New Super Mario Bros..
- Dino Rhino—A rhinoceros-like dinosaur enemy found in Super Mario World.
- Dino-Torch—A small,fire breathing Dino Rhino that appears in Super Mario World.
- Dizzy Dandy—A flowerlike enemies foun in Yoshi's Island.
- Doctor Freezegood—A skiing snowman.
- Dolphin—A helpful creature that you can ride in the water in Super Mario World.
- Doogan—A dog-like species introduced in Paper Mario and continued into Paper Mario: The Thousand-Year Door.
- Dry Bones—A collapsable Koopa Troopa skeleton that debuted in Super Mario Bros. 3 and has appeared in most Mario games since. Sometimes it can throw bones at the player.
- Dryite—A person garbed in clothes in the desert.
- Dull Bones—A weak Dry Bones that cannot reform itself. Appears in Paper Mario: The Thousand-Year Door. In Super Paper Mario, it was actually more powerful than regular Dry Bones.
- Duplighost—A ghost that can change its shape. Appears in Paper Mario.
E
- Eeker—A living beaker who fights with fire rods in Mario and Luigi: Superstar Saga.
- Eerie—A ghostly dinosaur-like enemy that flies throughout the room in Super Mario World. It usually appears in pairs.
- Egg-Plant—A plant that spits out Yoshi eggs. Some spit out Needlenoses. Appears in Super Mario World 2: Yoshi's Island and Yoshi's island DS.
- Eggo-Dil—A large flower in Super Mario World 2: Yoshi's Island and Yoshi's Island DS. It attacks by launching petals in five different directions.
- Electrokoopa—An electric Koopa who patrols different areas in Super Mario Sunshine. Comes in three varieties.
- Elite Boom Guy—A stronger version of the Boom Guy. It appears in Mario & Luigi: Partners in Time.
- Elite Troopea—A very powerful Troopea with a red shell. It appears in Mario & Luigi: Superstar Saga.
- Elite Wizzerd—The strongest of the Wizzerds. It is located near the bottom of the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
- Elite X-Naut—The highest-ranking X-Naut soldiers that appear in Paper Mario: The Thousand-Year Door. Unlike the X-Naut Grunt or PhD, this type of X-Naut wears a black uniform.
- Ember—A blue fire creature in Paper Mario and Paper Mario: The Thousand Year Door which splits in two if a hit on them doesn't defeat them.
- Enigma—An assortment of clustered pig heads found in the Moleville Mines in Super Mario RPG: Legend of the Seven Stars. A palette swap of Gorgon.
F
- Fang—A bat found in Super Mario World 2: Yoshi's Island and Super Princess Peach.
- Fat Guy—An enormous shy guy that, when eaten, can become a giant egg.
- Fautso—An odd genie. It appears in Super Mario RPG: Legend of the Seven Stars.
- Fighter Fly—A fly in the NES port of Mario Bros.. Also appeared in Mario and Luigi: Superstar Saga and Mario Power Tennis.
- Fink Flower—A basic flower enemy. Appears in Super Mario RPG: Legend of the Seven Stars.
- Fireball—A blue version of Sparky that appears in the castles of Super Mario RPG: Legend of the Seven Stars.
- Fire Brothers—A variant of the Hammer Brothers that spits fire and appears in Super Mario Bros. 3, Paper Mario: The Thousand-Year Door, Mario Superstar Baseball, and New Super Mario Bros..
- Fire Chomp—A floating Chomp which spits fire in Super Mario Bros. 3 and New Super Mario Bros..
- Fire Snake—A fiery "snake" made up of several Podoboos that appears in Super Mario Bros. 3, Super Mario World, Mario Kart DS, and New Super Mario Bros..
- Fish in Bubbles—A fish trapped in a bubble in Super Mario World.
- Fishbone—A skeleton of a dead fish found exclusively in Super Mario World.
- Fishin' Boo—A ghostly Lakitu that hangs in a cloud, dangling blue fire from a fishing pole. It appears in Super Mario World and Super Princess Peach.
- Fishing Lakitu—A Lakitu that holds a fishing pole with a 1-Up Mushroom on it, waiting for Mario or Yoshi to take the bait. Will revert to a regular Lakitu when the 1-Up Mushroom is grabbed. Appears in Super Mario World and Super Mario World 2: Yoshi's Island.
- Flamer Guy—A burning Shy Guy found Super Mario World 2: Yoshi's Island.
- Flightless Goonie—A Goonie without wings in Super Mario World 2: Yoshi's Island.
- Flightless Skeleton Goonie—A Skeleton Goonie without wings in Super Mario World 2: Yoshi's Island.
- Floating Mine—A mine that floats in the air in Super Mario World.
- Flopsy Fish—A red fish that leaps out of water in Super Mario World 2: Yoshi's Island.
- Flower Fuzzy—A Fuzzy that absorbs FP from Mario, then attacks with magic in Paper Mario: The Thousand Year Door.
- Flurry—An ice creature that appears in Super Mario Bros. 2.
- Flying Goomba—A Goomba with wings in Super Mario World.
- Fly Guy—A Shy Guy with a propeller on its head that appears in Super Mario World 2: Yoshi's Island, Super Mario 64, Yoshi's Story, Mario & Luigi: Partners in Time, Mario Pinball Land, the Mario Party series, and Mario Power Tennis.
- Flying Wiggler—A butterfly version of Wiggler. He turns a bright red after he gets stepped on, and appears in Super Mario World 2: Yoshi's Island, Mario Power Tennis, and the Mario Party series.
- Forest Fuzzy—A Fuzzy that can be found in the Forever Forest in Paper Mario and also appears in Paper Mario: The Thousand Year Door. Can split in two.
- Freezie—An ice creature that slides across the ground in Mario Bros.
- Frog Pirate—One of Prince Froggy's minions in Super Mario World 2: Yoshi's Island. They attack with their tongues.
- Frost Piranha—A Piranha Plant with ice powers. Appears in Paper Mario, Paper Mario: The Thousand-Year Door, and Super Paper Mario.
- Fuzzbush—A living bush that attacks with Fuzzies in Mario and Luigi: Superstar Saga.
- Fuzzipede—An enemy in Paper Mario that resembles a Fuzzy and a Raven combined.
- Fuzzy—A monster that hangs on tracks in Super Mario World. It also appears in Paper Mario, Mario and Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, and Super Paper Mario.
- Fuzzy—A puffy creature who floats through the air. If Yoshi touches one, everything becomes distorted.
- Fuzzy Horde—A large group of Fuzzies in Paper Mario: The Thousand Year Door.
- Fuzzy Wiggler—A fuzzy Wiggler.
- Fwoosh—A cloud enemy that blows strong winds in Super Mario 64.
G
- Gargantua Blargg—A giant Blargg that emerges from lava in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Geckit—A gecko enemy that appears in Super Mario RPG: Legend of the Seven Stars; a palette swap of Gecko.
- Gecko—A gecko enemy that appears in Super Mario RPG: Legend of the Seven Stars; a palette swap of Geckit.
- Georgette Jelly—A slithering jelly creature.
- Giant Spiked Ball—A giant spiked ball.
- Gloomba—A dark version of a Goomba that is found underground. It was colored grey because of a palette error, but eventually was turned into a variation of the Goomba in Paper Mario and Paper Mario: The Thousand-Year Door.
- Glum Reaper—A ghost with scythes for hands.
- Glurp—A bluish puddle that can split into two Glurps.
- Gnarantula—An odd spider-like enemy in Mario & Luigi: Partners in Time.
- Golden Beanie—A very fast Beanie. Can sometimes be a Pestnut in disguise.
- Gold Bowser Statue—A hopping Bowser statue.
- Gold Fuzzy-A rare, golden Fuzzy.
- Gold Koopeleon—A defensive Koopeleon that often flees from battle in Mario & Luigi: Partners in Time.
- Goomba (or Chibibo)—The very first enemy that appears in Super Mario Bros. and has appeared in most of Mario's games since.
- Goomba in a Bubble-A Goomba that is trapped in a bubble.
- Goombette—A tiny Goomba.
- Goomdiver—A Goomba that wears a scuba mask and attack underwater in Mario and Luigi: Superstar Saga.
- Goonie—A bird that Yoshi can ride on.
- Gotchawrench—A Wrench-like creature from Wrecking Crew.
- Grand Goomba—A large Goomba found in Giant Land.
- Gray Bowser Statue-A statue of Bowser found in Super Mario Bros. 3. Some shoot fireballs or lasers.
- Green Colossal Koopa Paratroopa-A giant green Koopa Paratroopa found in Giant Land.
- Green Gargantua Koopa Troopa-A giant green Koopa Troopa found in Giant Land.
- Green Glove—A Shy Guy that throws eggs and catches them.
- Grim Leecher—A grim reaper that removes Baby Mario from Yoshi's back and reverses the controls.
- Grindel—A mummified Thwomp in Shifting Sand Land of Super Mario 64. It levitates in the air and falls to the ground, much like a Thwomp.
- Grinder-A spinning rotary blade.
- Gritty Goomba-A Goomba with a spear on its back.
- GRN Magikoopa-A Magikoopa that wears green robes. Can boost allies' defense power.
- Grodus X—a magical protector of Grodus that has the same characteristics as a Mini-Yux, only it is shaped as an X and not a triangle like a normal Mini-Yux. Grodus requires four Grodus Xs to create a barrier around him. Appears in Paper Mario: The Thousand-Year Door.
- Groove Guy-A Shy Guy jester.
- Grubby—a spiked slug in Super Mario Land 2: 6 Golden Coins.
- Grunt-A soldier that wears a thorny helmet. An egg will knock the helmet off.
- GRY Magikoopa-A Magikoopa that wears grey robes. Can temporarily turn his allies invisible.
- Guardian Shroob—a white Shroob that guards the Shroob Mother Ship in Mario & Luigi: Partners in Time.
- Guerrilla—a giant ape reminiscent of Donkey Kong that chucks rocks at the player in Super Mario RPG: Legend of the Seven Stars.
- Gulpit—a fat purple creature that spits rocks at Mario in Paper Mario.
- Gunner Guy-A Shy Guy with a cannon on its mouth.
- Gusty-A cloud creature that flies across the screen.
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- Hammer Brother—a helmeted turtle that throws hammers at Mario; it first appeared in Super Mario Bros. and has also appeared in Super Mario Bros.: The Lost Levels, Super Mario Bros. 3, Super Mario World, Super Mario RPG: Legend of the Seven Stars, Paper Mario, Mario and Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, Mario & Luigi: Partners in Time, Super Princess Peach, New Super Mario Bros., Mario Superstar Baseball, and the Mario Party series.
- Harry Hedgehog—a blue hedgehog that enlarges its spines when Yoshi draws near. Appears in Paper Mario: The Thousand-Year Door.
- Heave-Ho—a mechanical wind-up creature that flings Mario into the air in Super Mario 64.
- Heavy Troopa—a massive Paratroopa that takes advantage of his large bulk and weight to squash Mario. Appears in Super Mario RPG: Legend of the Seven Stars.
- Hefty Goonie—an obese Goonie that flies through the air in Super Mario World 2: Yoshi's Island. Stomping on him causes him to lose his wings and fall to the grown.
- Hidon—a treasure chest enemy and palette swap of Box Boy, Chester, and Pandorite that appears in Super Mario RPG: Legend of the Seven Stars.
- Hippopo—a blue hippo enemy that guards the Smithy Factory in Super Mario RPG: Legend of the Seven Stars.
- Hobgoblin—a ghoulish pumpkin creature that resides in Kero Sewers. Appears in Super Mario RPG: Legend of the Seven Stars.
- Hoopster—a ladybug creature that climbs up and down on vines in Super Mario Bros. 2.
- Hoohooros—a living statue that guards Hoohoo Mountain. Appears in Mario and Luigi: Superstar Saga.
- Hot Foot—a walking flame that usually walks off of candles in Super Mario Bros. 3.
- Hot Lips-A lava monster that spits lava, defeating Yoshi instantly if it touches him. Appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Hothead—a giant Sparky. Appears in Super Mario World and Super Princess Peach.
- Huffin Puffin—a fat, white bird, whose hatchlings can be used as eggs by Yoshi. Appears in Super Mario World 2: Yoshi's Island and Mario Party Advance.
- Hurt Plant—an enemy diguised as an ensnaring plant. Appears in Jade Jungle in Paper Mario.
- Hyper Cleft—a Cleft found in Gusty Gulch that can deliver a high-powered attack after charging. Appears in the Paper Mario series.
- Hyper Goomba—a Goomba found in Gusty Gulch and Twilight Trail that can deliver a high-powered attack after charging. Appears in the Paper Mario series.
- Hyper Paragoomba—a winged Hyper Goomba. Appears in the Paper Mario series.
- Hyper Spiky Goomba—a Hyper Goomba that wears a spiked helmet. Appears in the Paper Mario series.
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- Ice Puff—a blue Ruff Puff which appears in the frigid region of Fahr Outpost in Paper Mario: The Thousand-Year Door.
- Ice Snift—a Snift that spits ice. Appears in Joke's End in Mario and Luigi: Superstar Saga.
- Incoming Chomp—a Chain Chomp that leaps into the foreground and eats away the floor. Appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Iron Cleft—a type of Cleft in the Glitz Pit from Paper Mario: The Thousand-Year Door that is invincible to any attack except to another Iron Cleft smashing against its body, like a diamond only being able to break another diamond.
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- K-9—a mechanical dog that appears in Bandit's Way in Super Mario RPG: Legend of the Seven Stars.
- Kab-omb—a Bob-omb-like enemy that is set off once fire touches it. Appears in New Super Mario Bros..
- Kaboomba—a walking cannon which fires cannonballs in Super Mario World 2: Yoshi's Island and Super Princess Peach.
- Kinklink—a Chain Chomp that suspends the chandeliers in Bowser's Keep. Appears in Super Mario RPG: Legend of the Seven Stars.
- Klamber—a spider-like enemy that climbs on grates and fences in Super Mario Sunshine.
- Koopa Clown Car—a mechanical, hovering creature used by Bowser; debuted in Super Mario World and also appears in Super Mario RPG: Legend of the Seven Stars, Paper Mario, Paper Mario: The Thousand-Year Door, Mario Golf: Toadstool Tour, and Mario Party 7.
- Koopa Paratroopa (or Paratroopa) —a flying variant of the Koopa Troopa that debuted in Super Mario Bros., and has appeared in most of the games in the series since.
- Koopa Troopa—a common, hard-shelled, turtle-like enemy that debuted in Super Mario Bros., and has appeared in most of the games in the series since.
- Koopatrol—a powerful, armor clad Koopa who works for Bowser. Appears in Paper Mario and Paper Mario: The Thousand-Year Door.
- Koopeleon—primeval, chameleon-like Koopas of the Toadwood Forest that appear in Mario & Luigi: Partners in Time.
- KP Koopa—a golden Koopa Troopa that is a member of King K's team at the Glitz Pit. Appears in Paper Mario: The Thousand-Year Door.
- KP Paratroopa—a golden Paratroopa that is a member of King K's team at the Glitz Pit. Appears in Paper Mario: The Thousand-Year Door.
- Kriffid—a heat-resistant plant enemy that resides in Land's End. Appears in Super Mario RPG: Legend of the Seven Stars.
- Kuribo's Goomba—a Goomba that hops around in Kuribo's Shoe in Super Mario Bros. 3. The shoe can be swiped by Mario and used to trek over Munchers.
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- M. Bush—an enemy that disguises itself as a harmless bush in Paper Mario.
- Mace Guy—a Shy Guy that swings a large mace in Super Mario World 2: Yoshi's Island.
- Mad Piano—a haunted piano with teeth that attacks Mario in the Big Boo's Haunt level of Super Mario 64.
- Magikoopa—a robed turtle magician that debuted in Super Mario World and has appeared in Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Paper Mario, Mario and Luigi: Superstar Saga, Super Princess Peach, and Mario Superstar Baseball; was slated to appear in Mario Kart 64 but was replaced by Donkey Kong before the final release.
- Magmite—a rock-like cave creature in Super Mario RPG: Legend of the Seven Stars.
- Magmus—a stronger version of Magmite that thrives in the Barrel Volcano in Super Mario RPG: Legend of the Seven Stars.
- Malakoopa—a stronger Paratroopa that appears in Bowser's Keep in Super Mario RPG: Legend of the Seven Stars.
- Malibut—a sleepy halibut enemy found in Mario and Luigi: Superstar Saga.
- Manta—an unnamed manta ray that appears in Super Mario 64 and the Mario Party series.
- Mastadoom—a skeletal mammoth that appears on Star Hill in Super Mario RPG: Legend of the Seven Stars.
- Mecha-Blooper—a Mechanical blooper that shoots torpedoes from its tentacles in Mario and Luigi: Superstar Saga.
- Mecha-Chomp—a mechanical Chomp found in the Woohoo Hooniversity in Mario and Luigi: Superstar Saga.
- Mechakoopa—a mechanical toy Koopa used to pelt Bowser's Koopa Clown Car in Super Mario World; also appears in Super Mario RPG: Legend of the Seven Stars, and the Mario Party series.
- Medi Guy—a Shy Guy that rides in a flying ambulance in Paper Mario. Can heal his allies during battle.
- Mega Mole-a giant Monty Mole found on Dinosaur Island in Super Mario World.
- Melon Bug—a harmless bug that can roll into a ball and be pushed at enemies. Appears in Super Mario World 2: Yoshi's Island.
- Micro-Goomba—a tiny Goomba, usually found around larger Goombas and in groups; originally from Super Mario Bros. 3, they have also appeared in Super Mario RPG: Legend of the Seven Stars, Super Mario 64, and New Super Mario Bros..
- Milde—a marching balloon-like creature. Appears in Super Mario World 2: Yoshi's Island.
- Mini X Yux-These are little Yux that surround the X Yux. If 4 surround the X Yux, the X Yux will become encased in a shield and become invincible by regular attacks. Destroying just 1 mini X Yux will destroy the shield.
- Mini Z Yux-These are little Yux that surround the Z Yux. If 4 surround the Z Yux, the Z Yux will become encased in a shield and become invincible by regular attacks. Destroying just 1 mini Z Yux will destroy the shield.
- Mokura—a gaseous enemy that appears as a cloud on the Land's End overworld, then initially attacks as an invisible enemy "Formless" in battle. Appears in Super Mario RPG: Legend of the Seven Stars.
- Moneybags—an enemy that disguises itself as a coin, but is actually a small frog-like creature, in Super Mario 64 and New Super Mario Bros..
- Monty Mole—a mole enemy that appears in Super Mario World, Super Mario 64, Mario Kart 64, Super Mario Sunshine, Mario & Luigi: Superstar Saga, Mario & Luigi: Partners in Time, New Super Mario Bros., Mario Superstar Baseball, Mario Kart DS, and the Mario Party series.
- Moon Cleft—a Cleft that lives on the moon. Appears in Paper Mario: The Thousand-Year Door.
- Mr. Blizzard—a snowman enemy that throws snowballs. Appears in Super Mario 64 and the Mario Party series.
- Mr. I—a giant eyeball that appears in Super Mario 64 and the Mario Party series.
- Mr. Kipper—a green Cheep Cheep that appears in Super Mario RPG: Legend of the Seven Stars.
- Muckle—a land-dwelling jellyfish that appears in Nimbus Land in Super Mario RPG: Legend of the Seven Stars; palette swap of Leuko.
- Muddy Buddy—a friendly mud creature that Yoshi can use as "shoes" to walk over spikes. Appears in Super Mario World 2: Yoshi's Island.
- Mufti Guy-A Shy Guy that wears flowers as disguise and sits on the ground.
- Mukumuku—a gopher creature found on Star Hill in Super Mario RPG: Legend of the Seven Stars.
- Muncher—a small, invincible plant-like enemy that appears in Super Mario Bros. 3 and Super Mario World.
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- Needlenose—a spikey ball that certain enemies (like Blow Hard and Wild Ptooie Piranha Plant) spit out. Appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Nep-Enut—a blue Blargg that thrives in water rather than lava. Appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Nibbles—a mechanical fish that bites Mario when he steps into deep water in Paper Mario: The Thousand-Year Door.
- Ninja—a mysterious cloaked enemy that appears in the Smithy Factory in Super Mario RPG: Legend of the Seven Stars.
- Ninji—a star-like creature that appears in Super Mario Bros. 2, Super Mario World, Paper Mario, and Mario Party Advance. In Super Mario Bros. 2, "Ninji 1" will chase the player, while "Ninja 2" will stay in place and hop repeatedly.
- Nipper Plant (or Chompweed) —a white plant that leaps upward to bite Mario. It may stay motionless or walk around, and even spit fire. Nipper plants debuted in Super Mario Bros. 3 and also appeared in Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Super Princess Peach, and Yoshi's Island DS.
- Noki—friendly, crab-like creatures that converse with Mario in Super Mario Sunshine. Also appears in Mario Kart: Double Dash!! and Mario Superstar Baseball.
- Nomadimouse—a nomad Little Mouser that lives in Dry Dry Desert and wears heavy clothing. Appears in Paper Mario.
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- Pale Piranha—a colorless Piranha Plant found in the Boggly Woods of Paper Mario: The Thousand-Year Door.
- Pandorite—a treasure chest enemy and palette swap of Box Boy, Chester, and Hidon. Appears in the Kero Sewers in Super Mario RPG: Legend of the Seven Stars.
- Panser—a plant that walks or remains stationary while spitting fire in Super Mario Bros. 2.
- Parabeanie—a winged Beanie that appears in Mario and Luigi: Superstar Saga.
- Parabuzzy (or Para-Beetle)—an airborne Buzzy Beetle which can be ridden in Super Mario Bros. 3. Also appears in Paper Mario: The Thousand-Year Door.
- Paragloomba—a winged Gloomba that appears in the Paper Mario series.
- Paragoomba—a flying Goomba, some of which spout Mini-Goombas, that debuted in Super Mario Bros. 3 and has appeared in Super Mario World, Paper Mario, Paper Mario: The Thousand-Year Door, Super Princess Peach, New Super Mario Bros., and Mario Superstar Baseball.
- Paratroopea—a winged Troopea that appears in Mario and Luigi: Superstar Saga.
- Penguins—nameless penguins that appear in numerous Mario games, including Super Mario 64, Mario Kart 64, Dance Dance Revolution: Mario Mix and the Mario Party series.
- Petit Piranha—miniature Piranha Plants that bud from lava Piranha in Paper Mario.
- Phanto—a floating mask that guards keys in Super Mario Bros. 2.
- Phantom Ember—a green Podoboo found in the Palace of Shadow in Paper Mario: The Thousand-Year Door. Said to be an enraged spirit born of anger and confusion.
- Pianta—a species of friendly characters that debuted in Super Mario Sunshine and have also appeared in Mario Kart: Double Dash!!, Paper Mario: The Thousand-Year Door, Mario Power Tennis, Mario Superstar Baseball, and Mario Kart DS.
- Pider—a spider-like enemy that is found in the Great Tree in Boggly Woods and the Punies just can't stand this creature. Appears in Paper Mario: The Thousand-Year Door
- Pidgit—a carpet-riding bird that appears in Super Mario Bros. 2 and Mario & Luigi: Partners in Time, and as "Pidget Bill" in Super Mario World.
- Pile Driver Micro-Goomba—a Micro-Goomba disguised as a block in Super Mario Bros. 3, waiting to pile drive Mario.
- Pinwheel—a fan-like enemy found in Numbus Land in Super Mario RPG: Legend of the Seven Stars.
- Piranha Plant (or Pakkun Flower) —a common Mario enemy that usually appears extending (or jumping) from a pipe. It debuted in Super Mario Bros. and has appeared in most of the games in the series since.
- Piranha Planet-several Piranha Plants that reside in a large ball of pipes. Appears in Mario & Luigi: Partners in Time.
- Piro Dangle—a floating fire wisp that appears in Super Mario RPG: Legend of the Seven Stars. Similar to Sparky and may be a variation of the species.
- Piscatory Pete—a small fish found in deep water. Appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Plungelo—a large Cataquack-like creature that has plungers for feet and a Dune Bud on its head, which it uses to walk on mirrors, it appears in Super Mario Sunshine.
- Podoboo (or Lava Bubble)—a leaping ball of fire that appears in Super Mario Bros., Super Mario Bros.: The Lost Levels, Super Mario Bros. 3, Super Mario World, Super Mario Kart, Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Super Princess Peach, New Super Mario Bros., Yoshi's Island DS, and the Mario Party series.
- Poison Puff—a poisonous Ruff Puff that is located near the bottom of the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
- Pokey—a cactus-like enemy that debuted in Super Mario Bros. 2, and appears in Super Mario World, Super Mario World 2: Yoshi's Island, Super Mario 64, Paper Mario, Super Mario Sunshine, the Mario Party series, Mario Kart: Double Dash!!, Paper Mario: The Thousand-Year Door, Mario Kart DS, Mario & Luigi: Partners in Time, Super Princess Peach, and New Super Mario Bros..
- Pokey Mummy (or Poison Pokey)—a stronger Pokey found in the Paper Mario series that looks like a Pokey, but is blue and poisons Mario on contact. A different variety of Pokey Mummy appears as a boss in New Super Mario Bros.
- Porcu-Puffer (or Puffer-Cheep)—a puffer fish enemy that appears in Super Mario World and Mario and Luigi: Superstar Saga.
- Porcupo—a porcupine creature with spines on its back. Appears in Super Mario Bros. 2.
- Poundette—a pink hammer enemy that works in the Smithy Factory. Appears in Super Mario RPG: Legend of the Seven Stars.
- Preying Mantas—a jellyfish found in deep waters in Super Mario World 2: Yoshi's Island.
- Ptooie—a Piranha Plant that walks around or stays in pipes and blows a spiked ball in Super Mario Bros. 3.
- Pulsar—a clustered crystal enemy found on Star Hill in Super Mario RPG: Legend of the Seven Stars; palette swap of Cluster.
- Puppox—a possessed puppet that thrives in the Smithy Factory in Super Mario RPG: Legend of the Seven Stars; palette swap of Remo Con.
- Putrid Piranha—a variant of the Piranha Plant that can poison with its bite. Appears in Paper Mario: The Thousand-Year Door.
- Pyro Guy—a flaming Shy Guy that appears in Super Mario World 2: Yoshi's Island and Paper Mario.
- Pyrosphere—a stronger version of the standard Podoboo that appears in the Barrel Volcano in Super Mario RPG: Legend of the Seven Stars.
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- Sackit—tiny thieves of Star Hill that steal from Mario's party in Super Mario RPG: Legend of the Seven Stars; palette swap of Crook.
- Scaratroopea—a more powerful version of the standard Paratroopea. Appears in Mario & Luigi: Superstar Saga.
- Scuttle Bug—a spider-like creature that appears in Super Mario 64, New Super Mario Bros., and Mario Party 7.
- Seedy Pod—a plant creature that burrows into the ground and tosses rocks at Mario in Super Mario Sunshine.
- Shadow—A black ghost that appears in dank places in Super Mario RPG: Legend of the Seven Stars.
- Shady Koopa—a blue-shelled Koopa Troopa with a grey-looking face that can attack after its shell has been flipped. They have a place of honor in the Koopa Family Tree because of the way they look. Appears in Paper Mario: The Thousand-Year Door.
- Shady Paratroopa—a Shady Koopa with wings. Appears in Paper Mario: The Thousand-Year Door.
- Shaman—a mysterious, hooded creature that appears in Super Mario RPG: Legend of the Seven Stars.
- Shark Chomp—a giant Chomp that chases after Yoshi, destroying anything in its path that can be destroyed. Appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Sharpea—the Beanbean Kingdom's equivalent of Spiny. Appears in Mario and Luigi: Superstar Saga.
- Shelly—the giant egg that hatches into Birdo in Super Mario RPG: Legend of the Seven Stars.
- Shogun—armored ants that reside in quicksand in Super Mario RPG: Legend of the Seven Stars..
- Short Fuse—a monkey that hangs from trees and drops bombs in Super Mario World 2: Yoshi's Island.
- Shroob—an alien mushroom monster species that appears in Mario & Luigi: Partners in Time.
- Shroob Rex—an alternate version of the standard Rex that bears relation to the Shroob aliens. Appears in Mario & Luigi: Partners in Time.
- Shrooba Diver—a green Shroob that wears a snorkel mask and resides in quicksand in Mario & Luigi: Partners in Time.
- Shroobsworth—an elderly Shroob that bears resemblance to Toadsworth. Appears in Mario & Luigi: Partners in Time.
- Shy Guy—a common, masked enemy that debuted in Super Mario Bros. 2; it has since appeared in many incarnations in Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, Super Mario 64, Paper Mario, Paper Mario: The Thousand-Year Door, Mario & Luigi: Superstar Saga, Mario & Luigi: Partners in Time, Yoshi's Island DS, the Mario Kart series, the Mario Tennis series, the Mario Party series, and Mario Superstar Baseball.
- Shy Ranger—A Shy Guy in army fatigues, which can only be fought in the Pipe Vault while the Feather is equipped. Appears in Super Mario RPG: Legend of the Seven Stars.
- Shy Stack—A stack of Shy Guy that works for General Guy in Paper Mario.
- Shy Squad—A group of Shy Guys that works for General Guy in Paper Mario.
- Shyper—A grey Shyster that is constructed by Smithy in the final battle in Super Mario RPG: Legend of the Seven Stars.
- Shyster—a bouncing Shy Guy-derivative enemy in Super Mario RPG: Legend of the Seven Stars.
- Skeeter—an enemy similar to a water strider that appears in Super Mario 64 and New Super Mario Bros..
- Skeleton Bee—a bee that will come back to life after Mario jumps on it in Super Mario Land 2: 6 Golden Coins.
- Skeleton Goonie—An undead Goonie that appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Skelokey—a skeletal version of Pokey that appears in Mario & Luigi: Partners in Time.
- Sky Guy—a Shy Guy tied to balloons and wields a sling shot in Paper Mario.
- Sky-Blue Spiny—Appears from a pipe thrown by Dark Lakitu in Paper Mario: The Thousand-Year Door.
- Sledge Brothers—Fat versions of the Hammer Bros. that use their wide girth to create earthquakes. Their bulk, which gives them their ability, drags them down. They appear in Super Mario Bros. 3 and New Super Mario Bros..
- Sling Guy—a green variant of Shy Guy that appears in Super Mario RPG: Legend of the Seven Stars.
- Slugger—a Shy Guy with a baseball bat. He can hit eggs back at Yoshi using his bat. Appears in Super Mario World 2: Yoshi's Island and Yoshi's island DS.
- Sluggy—a small slug that, when hanging from the ceiling, will try to drop on Yoshi in Super Mario World 2: Yoshi's Island.
- Smilax—a variation of a Piranha Plant that appears in Super Mario RPG: Legend of the Seven Stars.
- Snailicorn—an odd snail-like enemy with a single horn that appears in New Super Mario Bros..
- Snapdragon—an enemy flower of Rose Way that appears in Super Mario RPG: Legend of the Seven Stars.
- Snift—a masked, projectile-spitting creature that debuted in Super Mario Bros. 2. In several incarnations it has also appeared in Super Mario World 2: Yoshi's Island, Super Mario RPG: Legend of the Seven Stars, the Mario Party series, and numerous variations in Mario and Luigi: Superstar Saga, Yoshi's Island DS, and Mario & Luigi: Partners in Time.
- Sniper Bill—a Bullet Bill that fires a Super Scope in Mario and Luigi: Superstar Saga.
- Snooza Koopa—a large Koopa that wears a Yoshi's eggshell as a disguise in Super Mario Sunshine.
- Snow Spike—a snowball-throwing Spike that appears in New Super Mario Bros.
- Snufit—a floating variation on Snift that appears in Super Mario 64.
- Soul Bubble—an enhanced Love Bubble that is capable of reviving fallen enemies. Appears in Shroob Castle in Mario & Luigi: Partners in Time.
- Spania—a Spinia with spikes protruding from its top. Appears in Paper Mario: The Thousand-Year Door.
- Sparky—a ball of fire that appears in Super Mario Bros. 2, Super Mario World, Mario and Luigi: Superstar Saga, and Super Princess Peach.
- Spear Guy—a savage Shy Guy that wields a spear and shield, and appears in Super Mario World 2: Yoshi's Island, Mario Party Advance, Mario Power Tennis, and Yoshi's Island DS.
- Spike—a turtle-like creature that spits up spiked balls and throws them in Super Mario Bros. 3, Super Mario World 2: Yoshi's Island, and Super Princess Peach.
- Spike Bass—a large, spiked fish enemy that leaps out of the water at Mario, in New Super Mario Bros..
- Spiked Fun Guy—a small cactus-like enemy that appears in Super Mario World 2: Yoshi's Island.
- Spiked Gloomba—a Gloomba with a spiked helmet that appears in the Paper Mario series.
- Spiked Goomba—a Goomba with a spiked helmet that appears in the Paper Mario series.
- Spikester—a spiked creature related to Spiny; appears in Super Mario RPG: Legend of the Seven Stars.
- Spike Top—a Buzzy Beetle with a spike on its shell that appears in Super Mario World, Paper Mario, Paper Mario: The Thousand-Year Door, and Super Princess Peach.
- Spiky Parabuzzy—a Spiky Parabuzzy with wings that appears in Paper Mario: The Thousand-Year Door. Invulnerable to almost all techniques.
- Spiky Snift—a cactus Snift that spits spikes Appears in Mario and Luigi: Superstar Saga.
- Spindel—a mummified log that lives in the Shifting Sand Land pyramid and tries to run Mario over in Super Mario 64.
- Spindrift—an odd creature with a flower-like propeller on its head that, once Mario stomps on it, causes him to fly into the air and spin for a short time. Appears in Super Mario 64.
- Spinia—an unknown creature made of thin, papery boards. Appears in Paper Mario: The Thousand-Year Door.
- Spinthra—a poisonous spider that appears in Super Mario RPG: Legend of the Seven Stars; palette swap of Arachne.
- Spiny—a spiked turtle-like enemy that appears in Super Mario Bros., Super Mario Bros.: The Lost Levels, Super Mario Bros. 3, Super Mario World, Super Mario RPG: Legend of the Seven Stars, Super Mario 64, Paper Mario, Mario and Luigi: Superstar Saga, Paper Mario: The Thousand-Year Door, Super Princess Peach, New Super Mario Bros., and the Mario Party series.
- Spiny Cheep-Cheep—A Cheep-Cheep with spikes on its head that appears in Super Mario Bros. 3.
- Splunkin—small pumpkin-like enemies in the ghost houses of New Super Mario Bros..
- Spookum—a blue version of Snift. Appears in Super Mario RPG: Legend of the Seven Stars.
- Spooky—a Shy Guy disguised as a ghost. Appears in Super Mario World 2: Yoshi's Island.
- Spray Fish—a large fish that sprays water at Yoshi. Appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Springer—a green Shy Guy on a pogo stick that appears in Super Mario RPG: Legend of the Seven Stars; palette swap of Shyster.
- Spunia—a more powerful version of Spania. Appears in the Pit of 100 Trials in Paper Mario: The Thousand-Year Door.
- Spy Guy—a variant of Shy Guy that hides in bushes and uses either a hammer or a slingshot. Appears in Paper Mario.
- Squiggler—a tiny, worm-like Wiggler that hides in pipes in New Super Mario Bros..
- Starkiss—a starfish that blows harmful kisses in underwater locales in Mario and Luigi: Superstar Saga.
- Starslap—a pink starfish from Rose Way that appears in Super Mario RPG: Legend of the Seven Stars; palette swap of Zeostar.
- Stilt Guy—a Shy Guy who walks on stilts and appears in Super Mario World 2: Yoshi's Island, Paper Mario, and Yoshi's Island DS.
- Stinger—a bee that appears in Super Mario RPG: Legend of the Seven Stars;palette swap of Buzzer.
- Stone Chomp—an ancient Chomp made of stone that guards the Dry Dry Ruins in Paper Mario.
- Strawhead—a ghastly pumpkin-like creature that haunts the Sunken Ship in Super Mario RPG: Legend of the Seven Stars; palette swap of Hobgoblin.
- Stretch—a haunted bar consisting of multiple Boo heads. Appears in Super Mario Bros. 3.
- Stretch Guy—a very tall Shy Guy that flatterns and spits seeds when jumped on. Appears in Super Mario World 2: Yoshi's Island.
- Strollin' Stu—a small clown-like enemy that can be considered the equivalent of the Goomba and appears in Super Mario Sunshine. There are several varieties: one slightly smaller than Mario, one slightly bigger, one much bigger, one that's on fire, one that flies, and one thats giant and flies that can steal Mario's hat and copy his moustache.
- Stumpet—a charcoal-spewing enemy found in the Barrel Volcano in Super Mario RPG: Legend of the Seven Stars.
- Sumo Brother—a koopa who has grown to an enormous size and has trained in the art of sumo. He uses his girth as a weapon, and can call down lightning. His enormous bulk protects him from being jumped on. Appears in Super Mario World.
- Super Fly—a more powerful version of Fighter Fly that appears in Mario and Luigi: Superstar Saga.
- Super Koopa—a Koopa Troopa that wears a magical cape and can fly in Super Mario World.
- Support Ghost—a friendly Ghost that carries a platform on its head that can be ridden. Appears in Super Mario World 2: Yoshi's Island.
- Sushi—a shark enemy that appears in Super Mario 64, New Super Mario Bros., and the Mario Party series.
- Swampire—the strongest of the Swooper family. A feared health-sucking Swooper that lives near the bottom of the Pit of 100 Trials in Paper Mario: The Thousand-Year Door.
- Swooper—a bat enemy that swoops down from cave ceilings to attack in Super Mario World, Super Mario 64, Paper Mario, Paper Mario: The Thousand-Year Door, and New Super Mario Bros..
- Swoopin' Stu—a flying version of Strollin' Stu that attempts to steal Mario's hat in Super Mario Sunshine.
- Swoopula—a more powerful version of Swooper. It appears mostly in eerie palaces in Paper Mario and Paper Mario: The Thousand-Year Door.
- Sworm—a worm-like enemy that pops out of the ground in Mario and Luigi: Superstar Saga.
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- Unagi—A giant eel that varies in size in Super Mario 64 and New Super Mario Bros.
- Urchin—An underwater hazard in Super Mario World and Super Princess Peach.
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- Wall Lakitu—A Lakitu that peeks its head out of a hole in a wall and throws Spiny Eggs. It appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Whacka—A rare creature from the Paper Mario series that, when hit on the head, drops a Whacka's Bump. If hit enough, it will die.
- Whirly Guy—A flashing Fly Guy that quickly flies away when approached. It appears in Super Mario World 2: Yoshi's Island.
- White Clubba—Arctic-thriving Clubbas that patrol found Shiver Mountain in Paper Mario.
- White Magikoopa—A Magikoopa that wears white robes and appears in the Paper Mario series. It has the ability to heal itself and others.
- Whomp—A tall, walking stone creature that hurls itself onto Mario when approached. It appears in Super Mario 64, Mario Golf: Toadstool Tour, New Super Mario Bros., and the Mario Party series.
- Wind Spirit—Ghastly clouds that appear in Super Mario Sunshine and swirl around Mario, charging at him.
- Winkle—A friendly snail race that lives in the Chucklehuck Forest in Mario & Luigi: Superstar Saga.
- Wiggler—A passive yellow caterpillar that becomes aggressive and red when stomped on. It appears in a large amount of Mario games.
- Wild Ptooie Plant—A green Piranha Plant that spits out Needlenoses. It appears in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
- Wizzerd—a half-organic, half-mechanical creature that lives in the Pit of 100 Trials. Appears in Paper Mario: The Thousand-Year Door.
- Woozy Guy—a dizzy Shy Guy that flips into the air to move in Super Mario World 2: Yoshi's Island and Yoshi's Island DS.
X
Y
- Yellow Koopa Paratroopa—A Paratroopa with a yellow shell that first appeared in Super Mario World. They are very rare, only appearing in a few levels.
- Yellow Koopa Troopa—A Koopa with a yellow shell that first appeared in Super Mario World. They have the ability to leap into their shells and spin around, becoming much harder to kill.
- Yellow Magiblot—A black, bloblike magician that shoots yellow beams of energy and teleports around the room by going into the floor. It appears in Super Paper Mario.
- Yellow Magikoopa—A Magikoopa that wears yellow robes. It can temporarily electrify one of his allies. Appears in the Paper Mario series.
- Yellow Yoshi—A Yoshi that is yellow that first appeared in Super Mario World. If one has a Koopa shell in it's mouth, it can create small earthquakes by jumping.
- Yo Bro—A reptile that attacks with a red and green yo-yo. It appears in Woohoo Hooniversity in Mario and Luigi: Superstar Saga.
- Yoshi—A species of dinosaurs that first appeared in Super Mario World. They attack with their long, sticky tongues and have a voracious appetite. They also come in a myriad of colors.
- Yux—A mechanical "X"-shaped creature that appears in Paper Mario: The Thousand-Year Door. It was constructed by the X-Nauts and shoots circular rays in and out of battle. It can also spawn Mini Yux which create a forcefield around it.
Z
- Z-Yux—A gray Yux that thrives on the Moon in Paper Mario: The Thousand-Year Door. Like the standard Yux, it shoots circular rays of energy in and out of battle. If not defeated quickly, it will spawn a Mini Z-Yux.
- Zeostar—A stronger, teal-colored version of Starslap that resides in the Sunken Ship in Super Mario RPG. It is able to heal its allies and use venomous attacks to poison Mario's party members.
- Zeus Guy—A masked enemy that appears in Super Mario World 2: Yoshi's Island. They are invincible and shoot balls of fire from their hands.