At first my 3DS would not recognize the game for some reason, and I thought it was because of some sort of international restriction. After cleaning the strips with rubbing alcohol and some finessing I got it working though - it seems the connection to the game slot is a bit loose/sensitive.
I think this game is useful for intermediate Japanese learners. It teaches you proper grammar and it ensures that you actually understand what's being said in order to get answers correct. You will still need a foundational knowledge of reading and vocabulary though, and an external resource to look up unknown vocabulary. There is no voice acting so unfortunately it cannot serve as listening practice. All and all I would still say it works very well to supplement your Japanese learning.
