The game features similar gameplay to past "Mario & Luigi" games. Mario and Luigi explore the game's world and fight in turn-based battles. The game will involve a setting of Luigi's dreams, where Luigi falls asleep at certain points in the story and opens a portal leading to his dreams. Mario will be able to go through the portal to explore Luigi's dreams. In the dream world, the player will be able to use the console's touch screen to cause events to happen.