In Japan, its as though the entire population is exercising their prenatal cortex. The latest fad, sure, but its sweeping across Japan. Along with the famous teachings of some doctor, the Japanese are treated to the insightful -- and helpful -- tutorials on their very own language: Kanji. While in route on a long train ride or jetting off to work, PSP owners can increase their Kanji comprehension by completing a number of visual tests and minigames.