History Characters / SMBMMarioBros

* ThePollyanna: Despite his timidity, Luigi still remains optimistic even if his family makes fun of him and not believing in them (expect their mother, who supports them all the time).

* TheHeart: From the get-go, Luigi is established as providing Mario with emotional support. Mario had second thoughts about using Italian accents in their commercial, but Luigi's facial expression and body language let Mario know he shouldn't worry about it, with the nearest Italian openly telling them he loved their accents. Later, Luigi comforts Mario when he's feeling down about their father's lack of support. When the two were being sucked into another dimension and both were spiralling out of control, Luigi calling out for Mario's help spurred the latter into taking control of the current and flying forward to grab his brother. [[spoiler:And eventually Luigi saves Mario's life in the climax by using a manhole cover to protect him from Bowser's fire breath.]]

** [[spoiler:Not only is he a fast learner, but is able to use his newfound skills practically in battle. When he first encountered the Dry Bones, he inadvertently discovered that they can be knocked to pieces if hit hard enough. He's dispatches of a Dry Bones by knocking its head into the lava moat whilst being chased by a horde of them. Come the final battle, his first plan of attack is to dissemble a Dry Bones and then use its shell as a shield and a projectile.]]

* TheHeart: From the get-go, Luigi is established as providing Mario with emotional support. Mario had second thoughts about using Italian accents in their commercial, but Luigi's facial expression and body language let Mario know he shouldn't worry about it, with the nearest Italian openly telling them he loved their accents. Later, Luigi comforts Mario when he's feeling down about their father's lack of support. When the two were being sucked into another dimension and both were spiraling out of control, Luigi calling out for Mario's help spurred the latter into taking control of the current and flying forward to grab his brother. [[spoiler:And eventually Luigi saves Mario's life in the climax by using a manhole to protect him from Bowser's fire breath.]]
* HiddenDepths: [[spoiler:Similar to what's been suggested of his game counterpart, Luigi might have more innate talent under his cowardly exterior compared to Mario, considering he was able to perfectly match his brother's moves after grabbing the Super Star, while Mario himself only developed those moves after spending the entire movie adapting to how the Mushroom Kingdom worked.]]

* DidYouJustFlipOffCthulhu: When Bowser interrogates him, demanding to know the identity of his brother, Luigi hypes up Mario as being infinitely better than Bowser. Luigi essentially insults the brute by saying that princesses find Mario attractive if "they have good taste". Turns out he was right. [[spoiler:How does Peach react when Bowser begs her for a second chance after the climax? She rejects him with utter disgust.]]

* DeathGlare: Both brothers sport this in their plumbing commercial as Mario demonstrates how he fixes a sink and Luigi plunges an overflowing sink. [[spoiler:This is their default expression in the climax upon using the Super Star power-up as they dispatch Bowser's army and punch Bowser. Mario especially has an absolutely ''livid'' expression as he and Luigi are about to punch Bowser into his castle.]]

* TheJuggernaut: In the finale, [[spoiler:they get the Super Star and not only become invincible, but their speed and strength is heightened. Any soldiers who get in their way are instantly curb-stomped and it doesn't matter how strong Bowser is: they punch, throw and stomp him around like he's nothing.]]

* ProfessionalVoiceDissonance: They normally speak with New York accents. In their plumbing service commercial, they put on exaggerated Italian accents reminiscent of Creator/CharlesMartinet's voices for the brothers. When Mario asks Luigi if the Italian accents were too much, Guiseppe (voiced by Martinet himself) thinks the accent to be perfect.

* IronButtMonkey: He takes an ''absurd'' amount of abuse when fighting Donkey Kong in single combat, but he manages to defeat his much larger opponent despite getting far fewer hits in. Even outside of this, he takes a lot of punishment, yet keeps on going out of sheer desire to rescue his brother.

** Mario's arrival in the Mushroom Kingdom kickstarts a series of events [[spoiler:which lead to Bowser's defeat.]] His determination to find and rescue Luigi impresses Peach enough that she allows him to accompany her on her journey to the Kong Kingdom to recruit Cranky and his army. Mario fights and beats Donkey Kong, the champion and Cranky's son, earning Peach another ally against Bowser. [[spoiler:Even when the Kongs are captured by Bowser, and it seems that Mario and Donkey Kong have died, the pair escape the Maw-Ray which swallowed them and begin an assault on Bowser's army, disrupting his wedding and rescuing Luigi and the prisoners. Mario then proceeds to save the Mushroom Kingdom from being blown up when Bowser launches a Bomber Bill.]]