Mario & Luigi: Dream Team Bros. — to save the people of Piillo Island, Mario needs to enter the "Dream World", which takes place in Luigi's dream, and Mario helps the Luigi from the dream world, "Dreamy Luigi". Aspects of the game are 2D and focused on platforming and are visible on the top screen of the Nintendo 3DS. The bottom screen contains a sleeping Luigi, and when the player interacts with him using the touch screen, aspects of the Dream World are affected. For example, making Luigi sneeze will cause a gust of wind.