Here’s an overview of the game, via Nintendo:
In this renewed classic, Mario and Luigi journey to the Beanbean Kingdom with Bowser to restore Princess Peach’s voice. Control Mario and Luigi simultaneously, making use of their unique Bros. Moves to solve puzzles and emerge victorious in action-packed battles. Recruit characters to grow your own Minion army as you fight to locate your missing leader!
Watch the announcement trailer below. View the first screenshots at the gallery.