Good game to prepare you for Kanji Exam
It's not a kanji dictionary, but it's a game that can teach you to read and write kanjis, to learn the stroke number of kanji and it's parts(meaning you can learn to write them in correct order).
it has a fun game that at the same time as you pass the basic kanji exam the game has, you certainly increses the ability to recognize write and read kanjis as you play.
I think it's a great game for anyone trying to get the Japanese Kanji Proficency Exams that the Japanese Embassies does.