[+]
Ultimate Kana Challenge
http://tell.fll.purdue.edu/hatasa/ultimate/
Java game of hiragana and katakana
http://www.sf.airnet.ne.jp/~ts/japanese/javagame1.html
Concentration games for Yookoso textbooks
http://www.mesacc.edu/~emiahn/concentration.htm
Transitive and Intransitive pairs
http://www.mlcjapanese.co.jp/DownloadF/Kyouzai/JidoushiTadoushi70Pairs.swf
Kanji Game
https://www.msu.edu/~lakejess/kanjigame.html
Kanji Invader
http://tell.fll.purdue.edu/JapanProj//KanjiInvader/KanjiInvader.html
JRPG (kanji learning)
http://chaosforge.org/taw/jrpg/
Nandoku kanji [+]
http://www.p-game.jp/game30/
[+]
Country Quiz [+]
http://www.gamedesign.jp/flash/kuniquiz/kuniquiz.html
Prefectures of Japan
http://www.purposegames.com/game/319
Statetris-Japan
http://www.mapmsg.com/games/statetris/japan/
World Map Flash Game [+]
http://www.gamedesign.jp/flash/worldmap/worldmap_jp.html
What can I do with a B.A. in Japanese Studies? 