Came across this interesting little quiz game for the DS based solely on the Japan Rail (JR) system. Seems like there's just no stopping the Train fascination in Japan, I remember running across an old steam locomotive demo in the middle of nowhere when I was hiking the mountain ranges outside Tokyo, and there was a metric ton of people just standing around watching this old train move 200 feet forwards, then backwards. For those inclined, there's a little flash demo on the website below. Just click where it says uh...click here.