Dr Kawashima's Brain Training: How Old is Your Brain is an online NDS game that you can play at Emulator Online. This free Nintendo DS game is the United States of America region version for the USA. Dr Kawashima's Brain Training: How Old is Your Brain is a single title from the many puzzle games and trivia games offered for this console. If you enjoyed playing this, then you can find similar games in the nds games category. Dr Kawashima's Brain Training: How Old is Your Brain game is from the various retro games on the site, and there are more games like this, including Kirby: Nightmare in Dreamland, Ultimate Brain Games and NBA Showtime: NBA On NBC.