Mario & Luigi (series)

Template:Series-infobox The Mario & Luigi series (Mario & Luigi RPG in Japan) are a series of role-playing games based on the Mario series developed by AlphaDream for Nintendo's handheld systems, starting in 2003 with Mario & Luigi: Superstar Saga for the Game Boy Advance. Each title has the player controlling Mario and Luigi to fight the antagonists. More playable characters have been introduced since the second game.

Games

Title, Original Release and System	Synopsis and Ratings
Mario & Luigi: Superstar Saga	The first game in the series was Mario & Luigi: Superstar Saga, released in 2003 for the Game Boy Advance. In the game, two new villains, Cackletta and Fawful, steal Princess Peach's voice. Mario and Luigi jump into the action and travel to the Beanbean Kingdom to stop them. It is later found out that Cackletta had stolen Peach's voice to awaken the Beanstar, a powerful star that can grant all wishes, such as letting Cackletta rule the world, that is awakened by a pure voice. Princess Peach happened to be the one with the "Pure" voice.
Template:Releasedate Game Boy Advance	GameSpot - 9.2 • Metacritic - 90
Mario & Luigi: Partners in Time	A sequel to Mario & Luigi: Superstar Saga was made for the Nintendo DS in 2005, called Mario & Luigi: Partners in Time. This game centered on the Mushroom Kingdom of the past, during the invasion of an alien race known as the Shroobs. Unaware of the danger, Princess Peach uses a Time Machine built by Professor E. Gadd to travel into the past, where she was promptly captured by the alien leader, Princess Shroob. Teaming up with Baby Mario and Baby Luigi, the adult Mario bros. set off to defeat the Shroobs and save Peach, using Time Holes created by the malfunctioning Time Machine to travel back and forth through time.
Template:Releasedate Nintendo DS	GameSpot - 8.9 • IGN - 9/10 ("Amazing") • Metacritic - 86
Mario & Luigi: Bowser's Inside Story	The third installment, Mario & Luigi: Bowser's Inside Story, was announced at Nintendo's Fall Press Conference on October 2nd, 2008. While Mario and Luigi are still playable, Bowser becomes the central protagonist in this game as he attempts to reclaim both the Mushroom and Koopa Kingdoms from Fawful, who used an outbreak of a disease known as the Blorbs as an opportunity to launch his own evil plot for world domination. Fawful later gives Bowser a Vacuum Mushroom, making Bowser inhale everything around him, including Mario, Luigi, Princess Peach, and other characters.
Template:Releasedate Nintendo DS	GameSpot - 9.0 • IGN - 9.5/10 ("Amazing") • Metacritic - 90
Mario & Luigi: Dream Team	The fourth installment, Mario & Luigi: Dream Team, was announced during February 14, 2013's Nintendo Direct. Due to the shift to 3D, the game uses a new art style. In this game, Mario, Luigi, Princess Peach, and Toadsworth go on a trip to Pi'illo Island, where the Bat King Antasma has turned many residents into stone, and kidnaps Peach. In order to save the Pi'illo Island folk and the princess, Mario must explore both the real, tridimensional world, and the side-scrolling world in Luigi's dreams.
Template:Releasedate Nintendo 3DS	Gamespot - 8.0 • IGN - 8.0 ("Great") • Metacritic - 81
Mario & Luigi: Paper Jam	The fifth installment, Mario & Luigi: Paper Jam, was announced during Nintendo's 2015 E3 Digital event and features a crossover with the Paper Mario series. The story involves Luigi accidentally stumbling over a book and releasing characters from the Paper Mario series into the Mario & Luigi world. Bowser and Paper Bowser, despite some arguments, decide to team up and kidnap Peach and Paper Peach. Thus, Mario and Luigi team up with Paper Mario to rescue the princesses.
Template:Releasedate Nintendo 3DS	IGN - 5.9 ("Mediocre") • Metacritic - 77

Gameplay elements

File:MandL2 GritzyDesert.jpg

Mario and Luigi in Gritzy Desert in Mario & Luigi: Partners in Time.

The Mario & Luigi series features both brothers responding to a specific input, Mario being controlled with "A" and Luigi "B". Like Super Mario RPG and Paper Mario, the Mario & Luigi series features a turn-based battle system. Enemies are encountered on the overworld, and the player can interact the enemy and enter into a battle scene. In battle, Mario and Luigi can attack either by using one of their basic attacks (jumping or with a hammer) or by using a special Bros. Attack (Special Attack in the third game). In Mario & Luigi: Superstar Saga and Mario & Luigi: Dream Team, the Bros. attack consumes Bros. Points (BP) (in Mario & Luigi: Bowser's Inside Story they are Special Points, and in Mario & Luigi: Partners in Time the Bros. Attacks. are instead items). The Mario & Luigi series battle system also comes with the ability to avoid attacks by jumping or counterattacking by using the hammer, depending on the attack. Enemies often signal which brother they are going to attack.

On the overworld, the player can jump using the brothers' respective buttons, and can hammer by pressing another button to switch to the hammer commands. In all four Mario & Luigi games, the brothers can also receive various new abilities to enter otherwise inaccessible spots. For instance, the Mario Bros. can use the High Jump ability to reach higher areas. The overworlds commonly feature various obstacles and platforming challenges that require the player to make use of various techniques to pass them.

Stats

As in most role-playing games, each character has a different stat. When characters level up by earning enough experience points (or alternatively use special items made from beans in Mario & Luigi: Superstar Saga), their stats elevate. Players can decide which stat to add a bonus via roulette, but they should be aware that the numbers that boost the star will eventually decrease if consistently chosen.

Stats are also temporarily increased or decreased when peppers are consumed or from enemy attacks.

Name	Description
HP	HP, or Health Points, is how much health the Mario Bros. the Baby Mario Bros., and Bowser have. If HP drops to zero, the brother faints. The fainted brother must be carried if the enemy attacks where he is, making it a slight liability with the battling brother. If all brothers or Bowser have no HP, then it is a game over.
SP	SP, or Special Points, is a stat found only in Mario & Luigi: Bowser's Inside Story. They are used when Mario, Luigi, or Bowser uses a Special Attack. They are very similar to Bros. Points.
BP	BP, or Bros. Points, allows Mario and Luigi to use Bros. Attacks in Mario & Luigi: Superstar Saga and Mario & Luigi: Dream Team. If Bros. Points are depleted or inadequate, Mario and Luigi cannot use certain Bros. Attacks.
POW	This stat indicates the Mario Bros., the Baby Mario Bros., and Bowser's offensive abilities. The higher the stat, the more damage they deal.
DEF	This stat indicates the Mario Bros., the Baby Mario Bros., and Bowser's defensive abilities. The higher the stat, the less damage they receive.
SPEED	A linear stat, Speed indicates how fast the characters are. Characters with the higher speed move first in battle.
STACHE /HORN	Stache, (or Horn for Bowser) is a unique stat. The higher the Mario Bros. have this stat, the more likely they can deal lucky hits, which deal double the damage. Also, the higher the stat, the bigger discount and bonuses the Mario Bros. can get at stores. In Mario & Luigi: Bowser's Inside Story, a higher Stache or Horn stat means a higher chance for winning in Scratch Card.

Items

The series features many items. Items can be obtained if the characters hit blocks, win battles, win minigames, and others. Mario and Luigi can buy items at various shops with coins they earned in battles and blocks. Clothes and badges are earned usually as a prize while key items are needed to advance the storyline or complete a sidequest.

Consumable items

Image	Name	Description
	Mushroom	Recovers 25 HP/20 HP/30 HP for the Mario Bros.
	Super Mushroom	Recovers 50 HP/40 HP/60 HP for the Mario Bros.
	Ultra Mushroom	Recovers 120 HP/80 HP/100 HP for the Mario Bros.
	Max Mushroom	Recovers all HP/240 HP/160 HP for the Mario Bros.
	Hot Drumstick	Recovers 80 HP for Bowser.
	Fiery Drumstick	Recovers 150 HP for Bowser.
	TNT Drumstick	Recovers 280 HP for Bowser.
	Mushroom Drop	Recovers 15 HP (all).
	Super Drop	Recovers 30 HP (all).
	Ultra Drop	Recovers 60 HP (all).
	Nut	Recovers 20 HP (each).
	Super Nut	Recovers 40 HP (each).
	Ultra Nut	Recovers 100 HP/80 HP (each).
	Max Nut	Recovers all HP/160 HP (each).
File:Syrups.PNG	Syrup Jar	Recover 20 BP/10 SP.
File:Syrups.PNG	Supersyrup Jar	Recover 40 BP/20 SP.
File:Syrups.PNG	Ultrasyrup Jar	Recover 100 BP/30 SP.
File:Syrups.PNG	Max Syrup Jar	Recover all BP/40 SP.
File:Ultra Mushroom.PNG	1-Up Mushroom	Revives a fallen brother with half of his max HP.
File:Ultra Mushroom.PNG	1-Up Super	Revives a fallen brother with all HP.
	Refreshing Herb	Used to get rid of status ailments.
File:Green pepper65.png	Green Pepper	Boost DEF and/or get lighter.
File:MLSuperStarSagaREDPEPPER.png	Red Pepper	Boost POW and/or weight.
	Blue Pepper	Raises SPEED.
	Golden Mushroom	Recovers Max HP and BP.
	Star Candy	Recovers 999 HP and SP; most likely all HP and SP, similar to the Golden Mushroom.
File:Retry Clock.PNG	Retry Clock	Allows a player to restart a battle after failure.

Beans

Template:MoreImages Beans are consumable items found in all Mario & Luigi games, but in Mario & Luigi: Superstar Saga, special beans are found, and they can be blended in Starbeans Cafe. The Bean Juice made from a blend of these beans can increase stats. In Mario & Luigi: Partners in Time, beans are used to buy badges. In Mario & Luigi: Bowser's Inside Story, and in Mario & Luigi: Dream Team, beans are used to increase stats.

Image	Name	Description
	Woo Bean	Woo Beans are usually found by defeating certain enemies, some with the Game Boy Horror SP pin. They are also earned in the surfing minigame.
	Hoo Bean	Hoo Beans are found in hidden treasure chests. They are also earned in the surfing minigame.
	Chuckle Bean	Chuckle Beans are found when Luigi digs up X marks on the ground. They are also earned in the surfing minigame.
	Hee Bean	Hee Beans are found when Mario and Luigi win certain minigames.
	Woohoo Blend	Created from brewing 25 Woo Beans, the Woohoo Blend gives 4 HP to the brother that uses it.
	Hoohoo Blend	Created from brewing 25 Hoo Beans, the Hoohoo Blend gives 4 BP to the brother that uses it.
	Chuckle Blend	Created from brewing 25 Chuckle Beans, the Chuckle Blend gives 4 SPEED to the brother that uses it.
	Teehee Blend	Created from brewing 25 Hee Beans, the Teehee Blend gives 4 STACHE to the brother that uses it.
	Hoolumbian Blend	Created from brewing 15 Woo Beans and 10 Hoo Beans, the Hoolumbian Blend gives 4 POW to the brother that uses it.
	Chuckoccino Blend	Created from brewing 15 Woo Beans and 10 Chuckle Beans, the Chuckoccino Blend gives 4 DEF to the brother that uses it.
	Teeheespresso Blend	Created from brewing 15 Woo Beans and 10 Hee Beans, the Teeheespresso Blend gives 6 to a random stat to the brother that uses it.
File:Bean.png	Heart Bean	Increases health by 1 Point.
File:Bean.png	Special Bean	Increases special points by 1 Point.
File:Bean.png	Power Bean	Increases power by 1 Point.
	Heart Bean DX	Adds 3 points to max HP.
	Bros. Bean	Adds 1 point to max BP.
	Bros. Bean DX	Adds 3 point to max BP.
	Power Bean DX	Adds 3 points to POW.
	Defence Bean	Adds 1 point to DEF.
	Defence Bean DX	Adds 3 points to DEF.
	Speed Bean	Adds 1 point to SPEED.
	Speed Bean DX	Adds 3 points to SPEED.
	Stache Bean	Adds 1 point to STACHE.
	Stache Bean DX	Adds 3 points to STACHE.

Badges

Main article: Badge § Mario & Luigi series badges

Badges can be equipped on the playable characters to give them extra effects or more power in battle. Badges are bought in shops, earned as prizes, or found in defeated enemies. Characters can equip only one badge at a time. In Mario & Luigi: Bowser's Inside Story, only the Mario Bros. can equip badges. The badges are part of a gauge that fills when an action command is executed well. When the gauge is filled, the Mario Bros. can use various actions including healing themselves.

Clothing

The main protagonists can also equip clothing to increase stats, such as DEF, HP, and SPD. Clothes can be bought at shops, earned as prizes, or found in defeated enemies. Some clothes are exclusive to Mario while only Luigi can wear others; some clothes are compatible with both. In Mario & Luigi: Superstar Saga, clothes can provide extra effects. In Mario & Luigi: Bowser's Inside Story, clothes received additional types including overalls, gloves, socks, boots, and accessories for Mario and Luigi, and shells, arm bands, rings, and fangs for Bowser. Characters can equip more clothing if their rank go up (the maximum is three), but they can equip only one of each type.

Lists

• Mario & Luigi: Superstar Saga
• Mario & Luigi: Partners in Time
• Mario & Luigi: Bowser's Inside Story
• Mario & Luigi: Dream Team

Characters

Major protagonists

Character	Biography	First Mario & Luigi appearance
Mario	Mario, with his brother, as the series name suggests, is the star of the series. When there is trouble, Mario attempts to solve the problem as quickly as he can, dragging Luigi alongside him. In this series, Mario is a very famous and popular hero, being well-known in various lands. As in the majority of Mario games, Mario is a silent protagonist, but he communicates by body movements and speaking in Italian-sounding gibberish.	Mario & Luigi: Superstar Saga
Luigi	Luigi is Mario's younger, lesser-known brother. He often gets dragged into adventures beyond his will. Luigi is more cowardly and more hesitant than Mario, but he is willing to help solve any trouble that has arisen. Luigi's clumsy antics are usually comic relief, but it can be sometimes dangerous, including when he left Baby Luigi alone to Petey Piranha in Mario & Luigi: Partners in Time. Luigi does not speak either in this game, communicating similarly to Mario; only in Dream Team do Luigi's thoughts take the form of words, and this happens only in Dream's Deep and whenever he becomes a giant.	Mario & Luigi: Superstar Saga
Bowser	Bowser is a character in Mario & Luigi: Superstar Saga and Mario & Luigi: Bowser's Inside Story. Unlike in most Mario games, Bowser aided Mario and Luigi in reaching the Beanbean Kingdom in Mario and Luigi: Superstar Saga, but after the crash landing, Bowser unintentionally became a rival, being used first by Popple as a minion and then by Cackletta as a body to posess. Bowser is the main protagonist in Mario & Luigi: Bowser's Inside Story, with Mario and Luigi adventuring inside him after he inhales the Vacuum Mushroom.	Mario & Luigi: Superstar Saga
Baby Mario	Mario and Luigi encounters Baby Mario and Baby Luigi in their adventures in Mario & Luigi: Partners in Time. Similar to Mario, Baby Mario often jumps ahead when a problem rises. Baby Mario is impulsive at times, unlike Mario, including when he uses his hammer in misbehavior.	Mario & Luigi: Partners in Time
Baby Luigi	Much like Luigi, Baby Luigi is a more timid brother than Baby Mario. In Mario & Luigi: Partners in Time, he is easily frightened, and he frequently cries in troublesome situations. Baby Luigi has shown to be key to destroying the Shroobs in Mario & Luigi: Partners in Time when he reverted characters to normal with his tears. He is also shown to know that an object has bad vibes, such as crying at the Cobalt Star because it contains the Elder Princess Shroob inside it.	Mario & Luigi: Partners in Time
Paper Mario	Originally from the Paper Mario series, Paper Mario is introduced to Mario and Luigi when Luigi tips over a book and releases the Paper Mario characters into their world. Paper Mario is one of them, and he immediately helps Mario and Luigi defeat some Paper Goombas, and the three team up to rescue Paper Toads, stop Bowser and Paper Bowser, and rescue Peach and Paper Peach. Paper Mario can create copies of himself to mitigate his low HP and attack multiple times at once. When dodging, when he jumps, he can float briefly. Paper Mario and the Mario Bros. are needed when performing Trio Attacks, and they also partake in Papercraft battles,	Mario & Luigi: Paper Jam

Major antagonists

Character	Biography	First Mario & Luigi appearance
Bowser	Bowser is the final boss of Mario & Luigi: Partners in Time and the true main antagonist of Mario & Luigi: Dream Team. In Mario & Luigi: Partners in Time, Bowser is mainly an antagonist, teaming up with Baby Bowser to fight Mario and causing trouble by kidnapping 'Princess Peach' (later revealed to be a disguised Princess Shroob). He is manipulated once again when he is turned into Shrowser by the Elder Princess Shroob. In Mario & Luigi: Dream Team, Bowser allies with Antasma to take advantage of the Dream Stone's wish granting powers, but it is later revealed that Bowser uses Antasma only to further his own goals.	Mario & Luigi: Superstar Saga
Cackletta	Cackletta is the main antagonist in Mario & Luigi: Superstar Saga. She and Fawful had stolen Princess Peach's voice. She has also caused trouble in Beanbean Kingdom by transforming Queen Bean into a giant beast and stealing the Beanstar. After Mario and Luigi defeated her, Fawful took her soul and placed it into Bowser's body, transforming Bowser into Bowletta.	Mario & Luigi: Superstar Saga
Fawful	Fawful is Cackletta's servant. He speaks in Engrish and uses many food-related metaphors. In Mario & Luigi: Superstar Saga, he steals Princess Peach's voice and helps transfer Cackletta into Bowser. In Mario & Luigi: Partners in Time, Fawful plays more of a supporting role. He runs an underground badge shop the Baby Mario Bros. can access. Fawful plays as the main antagonist in Mario & Luigi: Bowser's Inside Story. He has usurped Bowser's Castle while creating an outbreak of Blorbs. He has also given Bowser the Vacuum Mushroom to aid him in his plot to rule Mushroom Kingdom.	Mario & Luigi: Superstar Saga
Shroobs	The Shroobs are an alien race that has invaded Mushroom Kingdom in the past. They have trapped Toads and extracted their vim to power their technology. They can shoot bolts transforming characters into Shroob Mushrooms. The Shroobs speak a foreign language that Mario and Luigi understand only later in the game. One of the Shroobs major weakness is baby tears.	Mario & Luigi: Partners in Time
Princess Shroob	Princess Shroob commands the Shroob fleet during most of Mario & Luigi: Partners in Time, and is thus the game's main antagonist. When Princess Peach has traveled to the past, Princess Shroob manages to capture her, but not without Peach trapping the Elder Princess Shroob - the real leader of the shoobs - in the Cobalt Star. It is only after Princess Shroob is mortally wounded in battle that this is revealed, however.	Mario & Luigi: Partners in Time
Antasma	Antasma is a nightmare and the former primary antagonist of Mario & Luigi: Dream Team. He is behind the destruction of the Dark Stone and the freezing of the Pi'illos. Mario must enter Luigi's dreams in order to rescue Antasma's victims, which by the time Mario starts to enter Luigi's dreams include Princess Peach, whom Antasma abducts early in the game. He also teams up with Bowser, and the two villains later set their sights on the Dream Stone, which holds the power to grant any wish. Bowser later reveals that he is merely using Antasma to advance his own schemes.	Mario & Luigi: Dream Team
Paper Bowser	Originally from the Paper Mario series, Paper Bowser along with other paper characters such as Paper Mario, escapes from the storybook Luigi has accidentally opened. Paper Bowser is the main antagonist of Mario & Luigi: Paper Jam. When he initially meets Bowser, the two bicker, but they ultimately cooperate and kidnap Princess Peach and Paper Princess Peach.	Mario & Luigi: Paper Jam

Supporting protagonists

Character	Biography	First Mario & Luigi appearance
Princess Peach	Princess Peach is usually a victim when trouble arises in Mushroom Kingdom. In all games, she is kidnapped at some point. Peach, however, is not entirely helpless, since she has provided help to the Mario Bros. such as warning the dangers of the Cobalt Star and later the Dark Star.	Mario & Luigi: Superstar Saga
Toadsworth	Toadsworth is Princess Peach's companion. He is often worrisome about Peach, especially if Peach decides to take a trip. Toadsworth provides help and advice to the Mario Bros. during their adventures. In Mario & Luigi: Partners in Time, Toadsworth's younger counterpart, Toadsworth the Younger allies with Toadsworth and attempts to take care of Baby Peach.	Mario & Luigi: Superstar Saga
Professor Elvin Gadd	Professor Elvin Gadd helps Mario & Luigi with his items and inventions. In Mario & Luigi: Superstar Saga, he gives them a special item after he samples a new drink. His time machine in Mario & Luigi: Partners in Time has helped Mario, Luigi, and Princess Peach travel to the past. E. Gadd has also invented the Hydrogush 4000 from an event in Thwomp Mountain, which is vital in defeating the Shroobs.	Mario & Luigi: Superstar Saga
Baby Peach	When Princess Peach was a baby, her castle is being attacked by both Baby Bowser and the Shroobs, with Baby Bowser attempting to kidnap her. When Baby Bowser has realized he lost to the Shroobs, he allows the Baby Mario Bros. and Toadsworth the Younger to flee. Baby Peach is taken to safety in the future Princess Peach's castle, with Toadsworth and Toadsworth the Younger taking care of her.	Mario & Luigi: Partners in Time
Kylie Koopa	Kylie is a recurring supporting character in the Mario & Luigi series. She appears in Partners in Time in the past as a traveling reporter first encountered on Yoshi's Island. She encounters the brothers several times after this, and is the only person to see Elder Princess Shroob in the Cobalt Star besides Baby Luigi. She returns in Dream Team, oddly not remembering the brothers, in a much more minor role.	Mario & Luigi: Partners in Time
Stuffwell	Stuffwell is a friendly talking suitcase, invented by Professor Elvin Gadd. He carries Mario and Luigi's items and can show the party's stats. His catchphrase is, "BACK TO ADVENTURE!"	Mario & Luigi: Partners in Time
Starlow	Starlow is another supporting character that holds Mario and Luigi's items. She is one of the four Star Sprites shown in the game. She helps Mario and Luigi advance in their adventure by tutorials and advice. After Bowser inhales her, she tricks Bowser by calling herself "Chippy". Throughout the game, she has demonstrated irritation toward Luigi.	Mario & Luigi: Bowser's Inside Story
Prince Dreambert	Dreambert is the Prince of the Pi'illo people that helps Mario and Luigi in their adventures on Pi'illo Island. He aids them in the Dream World, helping them learn new moves to further advance deeper into Luigi's Dreams and information to aid them in their exploration. His main goal is to prevent Antasma from taking the Dream Stone and using it for malevolent reasons. His role is similar to Starlow and Stuffwell from the past games.	Mario & Luigi: Dream Team
Paper Peach	Originally from the Paper Mario series, Paper Peach, along with multiple paper characters, came out of the storybook Luigi dropped. She initially was frighted by the new world she found herself in, but later on developed a deep friendship with Princess Peach, as well as enjoying the company of Mario, Luigi and Starlow. After the Mario Bros. went looking for Paper Mario, Paper Peach and Princess Peach get kidnapped by the Bowser duo. While held captive, both princesses gossiped about multiple topics, such as their hairstyles, Mario, and getting kidnapped by Bowser.	Mario & Luigi: Paper Jam

Supporting antagonists

Character	Biography	First Mario & Luigi appearance
Popple	Popple is an independent thief that often crosses Mario and Luigi's tracks in Mario & Luigi: Superstar Saga. He has befriended Rookie, who is Bowser without his memory. Popple and Rookie cause trouble for Mario and Luigi multiple times, but they often end up getting beaten. When Popple loses Rookie, he teams with Birdo, with Birdo falling in love with him. Popple often ends his sentences with, "See?". He reappears in Mario & Luigi: Dream Team trying to steal a treasure and battling with Mario and Luigi.	Mario & Luigi: Superstar Saga
Baby Bowser	Baby Bowser is a major antagonist in Mario & Luigi: Partners in Time. It is revealed that even as a baby, Bowser attempted to kidnap Princess Peach. During one invasion, however, the Shroobs interfere, and Baby Bowser loses his Cobalt Star Shard. Baby Bowser, with Kamek, follows the Mario and Baby Mario Bros., attempting to steal back the shard.	Mario & Luigi: Partners in Time
Midbus	Midbus is Fawful's servant, guarding Bowser's Castle after Fawful has usurped it. Midbus fights Bowser three times in the game. Midbus is strong, but lacking in intelligence; he speaks in broken sentences. He often gives long names for weapons he uses.	Mario & Luigi: Bowser's Inside Story
Bowser Jr.	Bowser Jr. is a supporting antagonist mainly appearing in Mario & Luigi: Paper Jam. He is also appearing as a secret boss in Mario & Luigi: Dream Team. His best friend is Paper Bowser Jr. because they like to play together. His favourite activity is hanging out with Paper Bowser Jr. and working with his father, altough he hates guarding the princesses.	Mario & Luigi: Dream Team
Paper Bowser Jr.	Originally from the Paper Mario series, Paper Bowser Jr. appears as Bowser Jr.'s playmate. After Luigi opened the paper book, Paper Bowser Jr. alongside with his father landed inside Bowser's Castle. As Bowser and Paper Bowser were arguing, Paper Bowser Jr. played together with Bowser Jr. He likes to explore the realistic Mario world, and he hates guarding the princesses.	Mario & Luigi: Paper Jam
Koopalings		Mario & Luigi: Superstar Saga

Other characters

• Broque Monsieur
• Broque Madame
• Broggy
• Brickle
• Britta
• Elder Princess Shroob
• Kamek
• Prince Peasley
• Queen Bean
• Toadbert
• Eldream
• Private Goomp
• Corporal Paraplonk
• Sergeant Guy
• Lil' Massif
• Big Massif
• Dr. Snoozemore
• Zeekeeper
• Dr. Toadley
• Chakron
• Starshade Bros.
• Wiggler
• Petey Piranha
• Koopalings
• Toadette

Appearances in other series

Super Smash Bros. series

Artwork from the Mario & Luigi series appeared as stickers in Super Smash Bros. Brawl: Cackletta, Luigi with Baby Luigi, Luigi, Mario with Luigi, Prince Peasley, a Shroob, Stuffwell, and Toadsworth. Additionally, one of the random names in Brawl when naming something (for example, naming a friend code) is FWFUL, obviously referencing Fawful. Additionally, Gritzy Desert's music from Mario & Luigi: Partners in Time is selectable as the Mushroomy Kingdom's stage music.

A cover of the battle theme, "Try, Try Again" from Mario & Luigi: Dream Team, appears in the Paper Mario stage in Super Smash Bros. for Nintendo 3DS and in Woolly World in Super Smash Bros. for Wii U. As the original track, it was composed by Yoko Shimomura. Additionally, Super Smash Bros. for Wii U features original versions of "Tough Guy Alert!" in Woolly World and "The Grand Finale" from Mario & Luigi: Bowser's Inside Story in Mario Galaxy.

Super Mario-Kun

Super Mario-Kun has devoted a few volumes to Partners in Time and Bowser's Inside Story. The art style on the covers even reflect the Mario & Luigi art style (especially seen in the color of Mario and Luigi's insignias). Although the storylines are similar to the story in game, there are multiple variations and twists. General examples include Mario and Luigi being able to speak fully, and Baby Mario and Baby Luigi are capable of talking as well. More specifically, Yoob, for example, is actually a friendly giant Yoshi that Sunnycide manipulates while Tanoomba can transform into clones of Mario and company to cause mischief. Mario & Luigi: Superstar Saga, however, does not have entire volumes devoted to its story.

Similarities between games

• The first four games are mainly set somewhere other than the Mushroom Kingdom of the present (Beanbean Kingdom in Mario and Luigi: Superstar Saga, the Mushroom Kingdom of the past in Mario & Luigi: Partners In Time, Bowser's body in Mario & Luigi: Bowser's Inside Story and Pi'illo Island and Dream World in Mario & Luigi: Dream Team).
• All five games have their own version of common enemies (Mario & Luigi: Superstar Saga has bean-related enemies, Mario & Luigi: Partners in Time has Shroobified enemies, Mario & Luigi: Bowser's Inside Story has Fawful-themed, organ-themed and Dark Star-themed enemies, Mario & Luigi: Dream Team has Antasma-themed and dream-themed enemies, and Mario & Luigi: Paper Jam has paper versions of enemies).
• The first three games all feature Bowser as the first boss, so that the player can learn about the basic battle gameplay. During the initial fights of the first four games, Mario learns the action commands while Luigi is occupied with something else (watching in Mario & Luigi: Superstar Saga, playing in Mario & Luigi: Partners in Time, sleeping in Mario & Luigi: Bowser's Inside Story, and dreaming about the fight in Mario & Luigi: Dream Team).
• In all five games, an altered form of Bowser is the final boss (Bowletta, Shrowser, Dark Bowser,Dreamy Bowser and Shiny RoboBowser).
• In all five games' storylines are about or heavily feature collecting the pieces of a Star or another magic item (the Beanstar in Superstar Saga, the Cobalt Star in Partners in Time, the Star Cure/Miracle Cure in Bowser's Inside Story, the Ultibed in Dream Team and the Fire Ore for build Papercraft Fire Mario in Paper Jam).
• All games have the bosses exploding, and the enemies disappearing or a small explosion.
• Fawful appears as a recurring character in the first three games (As Cackletta's assistant in Superstar Saga, as a badge dealer under Princess Peach's Castle in Partners in Time, and as the main antagonist in Bowser's Inside Story).
• The first three games and Paper Jam have Mario and Luigi saying "Let's-a-go!" and "Okey-dokey!" respectively when transitioning into a battle.
• In games after Superstar Saga Mario and Luigi have a partner that store their items, give tutorials, and also speak in Mario and Luigi's stead.
• In the first three games, three versions of Bowser must be battled (Bowser, Rookie and Bowletta in Superstar Saga, Bowser, Baby Bowser and Shrowser in Partners in Time and Bowser, Bowser X and Dark Bowser in Bowser's Inside Story).
  • Dream Team and Paper Jam takes it two steps forward, with five (Bowser, Giant Bowser, Bowser X, Giant Bowser X and Dreamy Bowser in Dream Team and Papercraft Bowser, Bowser, Paper Bowser, Shiny RoboBowser and Dry Bowser in Paper Jam).
• All five games have a Wiggler boss fight.
• In all five games the main antagonists have an alternative form in their final battle. Cackletta tansforms in her spirit, Elder Princess Shroob in a biggest and monstrous form, Fawful in Dark Star Core, Antasma in a ghost and Paper Bowser in an armor.
• In all five games there are characters who Mario and Luigi meet many times in the story. Prince Peasley in the first, Lilli Koopa in the second, Luc Bloque in the third, Eldream in the fourth and Toadette in the fifth.
• In all five games the main antagonist take Peach Castle or Bowser Castle. In the fourth and fifth games the main antagonists reigns in the castle with Bowser.
• Since second game, there are other characters playable over Mario and Luigi. In the second there are the babies, in the third there is Bowser, in the fourth there is Dreamy Luigi and in the fifth there is Paper Mario.
• In all five games a characters dresses clothes of Peach. In the first Luigi, in the second Princess Shroob, in the third the memory of Bowser, in the fourth Kamek with Trio èlite and in the fifth the false paperboard princess.