Mario & Luigi: Bowser's Inside Story, the third title in the Mario & Luigi series, for the Nintendo DS. It was confirmed on October 2 at the Fall 2008 Nintendo Conference, and was released on February 11, 2009 in Japan.
The game's North American release date is September 14, 2009. Although Birdo is not playable in this game, it have three new characters: Imounu, Sage Imounu and Imounu X. They're a sub-species of Birdos. This time, Mario & Luigi have a little partner, called: Starlow.