Perfect for those who want to stretch their brain cells and give it a workout, these tests have been devised in cooperation with Dr. Kawashima, a renowned neuroscientist. You can train both your mental awareness and memory. Hold the DS vertically and write your answers with the stylus on the touch screen. There's a combination of arithmetic, reading and memory tests, and the program calculates your score in the form of a 'brain age' by assessing the speed and accuracy by which you perform. Suitable for the Nintendo DS. For ages 3 years and over.