Where in Japan can I find the craziest roller coaster/thrill rides?

Question

I've heard about Fuji-Q High Land, are there any ones better than this themepark?

Answer 1

I have only gone to Fuji-Q, they have this roller coaster that has the sheerest vertical drop.  At least it was, a guess a new one could have been built in the last few years.  Plus you are right att he base of MT. Fuji, so you have an aweome view before the drop.  They have several coasters, and their Haunted Hospital is supposed to be good.  You have to get a reservation to get in to it, so go early if you like that kind of thing.