Intelligent Systems developed the series' previous games and "Super Paper Mario". Director Ryota Kawade changed the traditional concept of previous games with the intention of surprising fans with a new concept. While creating game concepts, he implemented switching through dimensions; he differed the combat from previous game entries to fit with the idea of dimension swapping. When presented to producer Kensuke Tanabe, they both agreed the game would work better in the style of an action-adventure video game, though he asked the staff to keep a role-playing game plot. Kawade found it difficult to "create a harmonic relationship between the worlds of 2D and 3D", and noted that the process consisted of trial and error. He said how creating one level "required the efforts of creating two levels", as they aimed for adding secrets in 3D that were not visible in 2D.