The only other games that come to my mind are mostly for kanji learning (they are japanese only, so you need to at least know hiragana): - Kageyama Method - Dennou Hanpuku: Tadashii Kanji Kaki to Rikun (NDS) - Zaidanhoujin Nippon Kanji Nouryoku Kentei Kounin: KanKen DS (I didn't try that one, but heard it requires a good japanese level)
