Magnus Tellefsen writes:
"Mario & Luigi: Bowser's Inside Story is in many ways the game Mario & Luigi: Partners in Time should have been. Through a constant stream of new game mechanics it never feels repetitive and the story and dialogue has me glue to the double screens. Old and new acquaintances are equally well created. The co-operation between the characters is spot on, and the puzzles have just the right degree of difficulty. Add to that the unique Bowser perspective and what we have is a delightful ride through his anatomy."