Brain Age was initially released in North America for the Nintendo DS. The games intended to help players reduce the age of their brains to become smarter. \n \nA new game in the series, Dr. Kawashima’s Brain Training, is the successor to the Brain Age series. A new English trailer was released, but for European gamers. \n \n \n \nThe YouTube description for the two-minute launch trailer states: "How old is your brain now? Find out with classic and new exercises in Dr. Kawashima's Brain Training for Nintendo Switch, out now!" \n \nThe game allows players to enjoy the title either vertically or horizontally with new and old games from Brain Age. One of the new games features the Dr. Mario puzzle, but with Dr. Kawashima instead of Nintendo's plumber. \n \nThe puzzles range from using the right Joy-Con’s IR Motion Camera, performing math drills, and other fun quizzes to keep gamers alert. \n \nAs part of Nintendo Switch Online are the "World Brain Training Championships." The results of daily training can also be shared via email. If players have trouble remembering to play, the game comes with a daily alarm to begin their training. The alarm works even if their Nintendo Switch is in Sleep Mode. \n \nAt the end of each day, the "brain age" chart is updated. Players can view the current age of their brains compared to previous days. This data should be viewed as entertainment value and not an official diagnosis from a medical professional. \n \nDr. Kawashima’s Brain Training was released with both a digital or physical edition. Up to two players can enjoy the game locally while the Championship leaderboards can be accessed worldwide with an active Switch Online account. \n \nThe physical release of Dr. Kawashima’s Brain Training comes with a special stylus. The stylus works similarly to the Nintendo DS' stylus to write on the screen. It's unlikely that other stylus tools will work on the Switch, and gamers should use caution or else scratch their Switch's screen. The official Nintendo switch Stylus can also be purchased separately. \n \nDr. Kawashima’s Brain Training was previously released in Japan in December and later in Europe and Australia. Strangely enough, the game was not released in North America. It's currently unknown if gamers in North America will get access to the game since Brain Age was released in the US.