From the game box: Are you right-brained or left-brained? Evidence suggests that "right-brain" people think more creatively and "left-brain" people think more logically. This brain orientation in turn determines weather you're a "righty" or a "lefty/ Until now! Introducing the only game designed to develop ambidexterity and open your mind to new ways of thinking! - Rotate the DS in book-style play that promotes hand-eye coordination via 15 challenging drills. - Monitor improvement via development percentages for each hand. - Challenge a friend to 2-player mini-game tests via DS download play.