Speaking at the Nintendo media briefing today, Reggie Fils-Aimé, president and chief operating officer of Nintendo of America, announced that Mario & Luigi RPG RPG 3: Bowser's Inside Story will be released across the Americas and Europe this autumn.

The game switches between three characters: Mario, Luigi and Bowser. As the game's title suggests, the plumbing brothers will spend much of their time exploring inside Bowser - this is presented in 3D. Bowser himself will explore the Mushroom Kingdom in an overhead view.