In a 2012 retrospective feature for
IGN, journalist Lucas M. Thomas discussed the return of the Koopalings in
New Super Mario Bros. Wii, in addition to their history. He wrote that the original
Super Mario Bros. had little boss variety, as most boss encounters involved Bowser or enemies disguised as him, and that
Super Mario Bros. 3 addressed this issue by introducing the Koopalings, with each member having distinct designs, personalities, and attack styles. Thomas said that the characters were popular during the
NES and
SNES eras but were used less often afterward, with Bowser Jr. taking their position. Thomas wrote that their reintroduction in
New Super Mario Bros. Wii brought back the series' earlier use of unique bosses and served as both a nostalgic reference for longtime players and an introduction for newer audiences. Jenni Lada of
Siliconera discussed the portrayal of the Koopalings in ''Bowser Jr.'s Journey'', noting that the characters are introduced early in the narrative and play an important role throughout the story. Lada observed that their individual personalities are shown through dialogue and interactions, with Ludwig acting in an advisory role, Morton being more straightforward, and the other Koopalings showing unique reactions to Bowser Jr.'s leadership. She believed that these exchanges helped show the group's character dynamics. According to Lada, their continued presence throughout the story enhances their status as senior members of Bowser's forces and reinforces their relationship with Bowser Jr. during events that happen alongside the main plot of ''Bowser's Inside Story''. Stephen Wilds of
ComingSoon.net discussed the Koopalings' portrayal in the animated television series
The Adventures of Super Mario Bros. 3, praising them as one of the most memorable elements of the show. Wilds wrote that the series stood out among video game adaptations for closely following the premise of
Super Mario Bros. 3 while expanding the personalities of the Koopalings through their frequent appearances as recurring antagonists alongside King Koopa (Bowser). He noted that the cartoon gave each member a distinct role and characterization, with episodes often focusing on their individual schemes or smaller group efforts rather than always featuring Bowser as the sole villain, which he believed allowed for more varied stories. According to Wilds, the animated portrayal showed exaggerated personalities, sibling rivalry, and attempts to gain Bowser's approval, which he considered to be a major reason the Koopalings remained memorable to viewers. He said that the cartoon gave the characters more defined personalities than many of their early video game appearances, helping maintain their recognition within the franchise. Toby Saunders from
GameRevolution reported and brought attention to an
internet trend called "#ProjectWendy". According to a discussion on
Reddit, the trend originated from a private
Discord group involving
Super Smash Bros.-dedicated content creators demanding that Nintendo include Wendy for
Super Smash Bros. Ultimate. In addition, a
Twitter poll indicated Wendy's lack of popularity, with the initiative intended to increase her visibility within the community. However, Saunders affirmed that Wendy was already selectable as one of Bowser Jr.'s skins, but not with an individual move set, for which all that hassle occurred. According to the Japanese website
Game*Spark, the critics were disappointed by the Koopalings' addition in
Mario Kart 8, classifying them as "filler characters". Furthermore, the website noted that they were overlooked by the game's supplementary characters, such as
Link and
Isabelle from
The Legend of Zelda and
Animal Crossing franchises, respectively. Mel Turnquist, writing for
Nintendojo, compared the Koopalings with Bowser Jr., observing that his debut in
Super Mario Sunshine and later appearances made fans complain about why the Koopalings are receiving so little attention. While some were fine with the Bowser Jr. inclusion, others criticized him for replacing the Koopalings. The situation further escalated when they reappeared in
New Super Mario Bros. Wii. Turnquist assured that while the Koopalings were excellent characters in their own right, in contrast, Bowser Jr. was not the worst creation by Nintendo. JohnnyChugs, an author from
Shacknews, investigated the connection of the Koopalings with Bowser, stating that while they are not his actual children and just minions, he cares about them equally as his own son, Bowser Jr., and provided them with facilities to succeed in their missions, in addition to giving each character their own unique castle. While there are positive aspects of their connection, there is also a negative one, particularly that the Koopalings are exposed to facing dangers and risking their lives due to Bowser's desire for revenge against his enemies. In a 2024
Retronauts podcast, the Koopalings in relation to Bowser were discussed between three authors: Bob Mackey, Henry Gilbert, and Drew Mackie. They noted the retcon happened back in 2012 by
Shigeru Miyamoto, when he confirmed that the Koopalings are no longer Bowser's children, which led the authors to question how Bowser accessed them or even connected to them, as if there was a
contact involved, and criticized Miyamoto for letting the retcon happen. Conversely, the authors praised the Koopalings for adding variety from a gameplay perspective and emphasized their decade-long sudden disappearance until
Mario & Luigi: Superstar Saga and, six years later, their main entry appearance. They noticed that the Koopalings did not speak that much in many of their early appearances, which affected their personalities until the later appearances. While the authors again criticized Miyamoto for not giving the Koopalings enough appeal, they praised game director
Masahiro Sakurai for the inclusion of the Koopalings in the
Super Smash Bros. universe as Bowser Jr.'s alternative costumes, allowing players to play as them instead of Bowser Jr. Harry Padoan from
TechRadar praised the addition of the Koopalings in
Super Mario Bros. Wonder and found creativity in the manner they were depicted in their "Wonder" forms, such as Wendy resembling another
Mario character,
Cheep Cheep, and Morton being controlled like a puppet. Although Padoan was disappointed about their difficulty, mentioning that they were easy to defeat as bosses, he was entertained in finding ways to beat them.
In academic studies In the 2016 study titled "A Radical Feminist Critique of the Video Game Industry" by Bryce Dumas of
Worcester Polytechnic Institute, the nature of female portrayals in video games was discussed. The study mentioned the Koopalings on page 44, with Dumas noticing that the group consisted of seven siblings, with six of the characters being male, while Wendy is the only female. He implied that the male Koopalings display varied physical designs, personalities, and abilities, whereas Wendy's design primarily emphasizes traditionally feminine traits, leading some critics to argue that her characterization is less individualized in comparison. This observation has been discussed in relation to what columnist
Katha Pollitt described as the "
Smurfette principle", a term used to refer to the presence of a single female character within an otherwise male group. Pollitt says that this pattern can imply that male characters are treated as the default, while female characters are portrayed as exceptions or defined in relation to male counterparts. Scholars and media critics have applied this concept to video games and other forms of popular media, arguing that character design and group composition can reflect broader cultural assumptions about gender roles. This idea is also shared in the 2019
Portuguese study "O Design Gráfico como Ferramenta na Divulgação do Movimento Feminista" by Júlia Toribio Leão of the
University of Porto, which, on page 61, examines how Wendy lacks personality and is less interesting compared to other male members. Speaking of gender depiction, in another study, "Women as characters, players and developers: An educational perspective", a researcher from the
University of Skövde, Emma Arltoft, has argued that the Koopalings' characterization mirrors broader patterns, especially in relation to gender. Drawing on concepts such as the "Smurfette principle" of Pollitt, she witnesses that while the Koopalings display varied personalities and visual traits, the sole female member, Wendy, is primarily defined through stereotypically feminine symbols, including pronounced eyelashes, jewelry, makeup, high heels, and a pink bow. This difference has been distinguished as indicative of a wider tendency in game design to treat male characters with flexibility, allowing them greater variation, while female characters are more narrowly constructed around gendered signals. According to Arltoft, this approach strengthens a binary understanding of gender, in which characters lacking such details are implicitly read as male, positioning Wendy's portrayal as a deviation from the norm and determining distinctions in gaming culture between what is considered standard and what is categorized as gender-specific.{{cite book |title=Women as characters, players and developers: An educational perspective |first=Emma |last=Arltoft |publisher=
University of Skövde == Notes ==