Number of entries
Kana+Kanji: 2227 entries
Grammar: 216 entries
Acknowledgment
Entries for Kanji are based on JDIC by Jim Breen.
Preparation tools
Game preparation tools allow to transform CSV (comma-separated values) files into Tetris (used for Kana and Kanji) and Multiple-Choice Drag-and-Drop (used for Grammar) games.
Format for Tetris
<kanji>,<reading>,<meaning>
日
,にち,day空
,そら,sky
Format for Multiple-Choice Drag-and-Drop
<text including #>,<to put in place of #>,<decoy>,<decoy>
空
#見えます,が,を,へ友達
#会います,に,を,かCSV files can be easily prepared using plane text editors (like Windows Notepad) or spreadsheet (like Microsoft Excel) software.