This is a Tetris-like matching game (ie. things move and you can’t stop them) to make studying Japanese Kanji and the Chinese Hanzi characters fun. Basically, you have to match:
“kanji character”+”phonetic reading”+”English meaning”
to score points.
Current word lists follow the Basic Kanji Book series:
Basic Kanji Book vol. 1-2
Chieko Kano, Yuri Shimizu, Hiroko Takenaka, Eriko Ishii
Bonjinsha Co., Ltd.
Other sites may have created .LVL files for other books. (for example there are Bible files on the biblejapanese.com site)