The Guardian delivered a particularly brutal one-star review, with critic Peter Bradshaw likening the film to an AI-generated imitation of an already AI-generated concept. He criticized its bland, simplistic nature, suggesting it was merely a cynical ploy to extract money from families during the holiday season.
Echoing similar sentiments, the New York Times' critic found the movie to possess a "flat empty nothingness." Variety's Owen Gleiberman elaborated on this, arguing that the film lacked a central focus, with none of its characters, including Mario and Luigi, truly anchoring the narrative.
Kevin Maher of The Times concisely summarized his experience as "torturous," leading to "actual physical discomfort." The Independent further underscored the film's superficiality, describing it as little more than "a series of large, vaguely connected explosions," a stark reflection of a media landscape saturated with uninspired content.
Even the most generous reviews struggled to genuinely endorse the movie. Gamesradar's critic, while acknowledging a slight improvement over its predecessor, admitted that the sequel only "sporadically lives up to the Galaxy moniker." The Boston Globe, awarding a mere two stars, confessed that the film would likely encourage viewers to play the games rather than rewatch the movie.
A recurring theme among the marginally positive critiques was the film's ability to merely occupy its audience for its runtime. Polygon noted that its "speedy plot and 98-minute run time help keep boredom at bay," while IGN's 6/10 review pointed to fan-service easter eggs and numerous references as its sole redeeming qualities. Ultimately, the film offers only temporary diversion, leaving a forgettable impression and a craving for more substantive entertainment.