I am not a teacher nor an expert in Japanese, so I can't really judge the game's effectiveness at teaching the player some kanji. However, what I can say is that if you go into this with absolutely no expectations or knowledge what this game's like you'll have a fantastic time. It kept throwing curveballs at me and I loved it for it. Now, I didn't do much beyond the opening and the first two lessons because I have a lot of games to play and I am already somewhat familiar with these kanji, but I think I can safely recommend this game: it's fun, and you'll definitely know more kanji after playing it than before. And who knows, maybe it'll be a good tool for me to refresh my Japanese some time later.