Nintendo Fans Speculate About Baby Mario and Luigi in Super Mario Galaxy Movie

Theories abound about the plumbers' infant forms in the upcoming film.

Feb. 9, 2026 at 9:23am

Got story updates? Submit your updates here. ›

The recent Super Bowl teaser for The Super Mario Galaxy Movie featured an extended look at Mario and Luigi being chased by a T-rex, but the characters shown were actually Baby Mario and Baby Luigi. Nintendo fans have taken to the internet with various theories about why the brothers are depicted as their younger selves, including the possibility of time travel, an age-reversing spell, or a nod to the classic Yoshi's Island game.

Why it matters

The appearance of Baby Mario and Baby Luigi in the movie teaser has sparked intense speculation and discussion among Nintendo fans, who are eager to uncover the reasoning behind this unexpected twist. The movie's connection to the broader Super Mario universe and its potential to offer new insights into the characters' backstories have fans buzzing with anticipation.

The details

The teaser shows Baby Mario waking up a sleeping T-rex by drumming the classic NES Mario theme on its teeth, prompting Baby Mario, Baby Luigi, Toad, and Yoshi to flee in terror. Fans have proposed various explanations for this, including the possibility of time travel, an age-reversing spell, or a connection to the events of Yoshi's Island, where Kamek attempts to kidnap the infant plumbers. The movie's cast, which includes Brie Larson as Rosalina and Benny Safdie as Bowser Jr., has also fueled speculation about the film's plot and its ties to the broader Super Mario universe.

  • The Super Bowl teaser for The Super Mario Galaxy Movie aired on February 9, 2026.
  • The Super Mario Galaxy Movie is set to be released in theaters on April 1, 2026.

The players

Baby Mario

The infant version of the iconic video game character Mario, who appears in the teaser for The Super Mario Galaxy Movie.

Baby Luigi

The infant version of Mario's brother Luigi, who also appears in the teaser for The Super Mario Galaxy Movie.

Kamek

A magikoopa who serves as a minion of Bowser and has a history of attempting to kidnap Baby Mario and Baby Luigi, as seen in the classic SNES game Yoshi's Island.

Bowser Jr.

The son of the main antagonist Bowser, who is set to appear in The Super Mario Galaxy Movie, played by actor Benny Safdie.

Rosalina

A character from the Super Mario Galaxy games who will be portrayed by actress Brie Larson in The Super Mario Galaxy Movie.

Got photos? Submit your photos here. ›

What they’re saying

“I'm sure Kamek made Mario and Luigi babies.”

— Delbianco27, Nintendo fan (Reddit)

“There is a possibility that they either hid the fact that they once ventured into the Mushroom Kingdom as babies, or some weird time travel shenanigans.”

— josh_winnnnnn, Nintendo fan (Reddit)

“I feel like there in an area that 'takes them back in time' hence why Mario and Luigi are babies. I really hope they aren't babies for most of the movie cause that would be awful.”

— GoldenGirlsFan213, Nintendo fan (Reddit)

“Could possibly be a relative of the present-day Toad.”

— josh_winnnnnn, Nintendo fan (Reddit)

What’s next

Fans will have to wait until the release of The Super Mario Galaxy Movie on April 1, 2026 to find out the true reason behind the appearance of Baby Mario and Baby Luigi.

The takeaway

The unexpected inclusion of Baby Mario and Baby Luigi in the teaser for The Super Mario Galaxy Movie has sparked a flurry of fan speculation, highlighting the enduring popularity of the Super Mario franchise and the intense interest in uncovering the secrets of the upcoming film.