Mario & Luigi: Bowser's Inside Story

Mario & Luigi: Bowser's Inside Story
North American box art
Developer(s)AlphaDream
Publisher(s)Nintendo
Director(s)Hiroyuki Kubota
Producer(s)Toshiharu Izuno
Akira Otani
Yoshihiko Maekawa
Programmer(s)Makoto Aioi
Artist(s)Kouichi Fukazawa
Composer(s)Yoko Shimomura
SeriesMario & Luigi
Platform(s)Nintendo DS
Release
  • JP/ROC: February 11, 2009
  • NA: September 15, 2009
  • EU: October 9, 2009
  • AU: October 22, 2009
Genre(s)Role-playing
Mode(s)Single-player

Mario & Luigi: Bowser's Inside Story is a 2009 role-playing video game developed by AlphaDream and published by Nintendo for the Nintendo DS. It is the third game in the Mario & Luigi series, following Partners in Time (2005). It uses the interactive screens of the DS in some of its gameplay mechanics while also introducing several elements that would be used in the series' future gameplay.

The game's plot involves Mario and Luigi being inhaled into the body of their long-time nemesis, Bowser. The Mario brothers learn to help Bowser, who is unaware of their presence inside his body, to combat their mutual enemy Fawful, who has taken over the Mushroom Kingdom. The gameplay focuses on the trio's cooperation, with specific abilities to solve puzzles and fight enemies. Similarly to its predecessors, its role-playing style emphasizes a turn-based battle system focused on timing accuracy, and it is almost entirely comedic in nature.

The game was both critically and commercially successful, with many fans and critics considering it to be the best game in the series. It is also the best-selling Mario role-playing game of all time, with 4.56 million copies sold worldwide as of 2020.

A sequel, Mario & Luigi: Dream Team, was released for the Nintendo 3DS on July 12, 2013. A remake for the Nintendo 3DS, titled Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey, was released in Japan on December 27, 2018, in North America on January 11, 2019, in Europe on January 25, 2019, and in Australia on January 26, 2019.