[Nyororin]

There are a limited number of Japanese universities that openly accept international students, and yes - you pay international student fees. The biggest reason I jumped for the JLPT1 and dealt with the whole mess of attending as a regular student. (I had a visa already, so didn`t need one from the school.) Could never have afforded the international tuition.

The best way is to simply contact the school and ask them directly about international student tuition.

I too would suggest taking a look around outside of Tokyo and Osaka - as they have the highest demand and high international fees. There are plenty of other universities involved in Robocup. Look around if you really want to come to Japan and cut costs.