Hi all
my daughter is in Japan studying at a langauge school. A few of them took time out to go to a local amusement park in Nagoya and rode on one of the larger rollercoasters (The steel dragon). There is a video taken by the front seat passenger here.
http://www.youtube.com/watch?v=8IKOxqpLm74it gives a good impression of the ride especially if you have sound on.
Nick