Triple An-Zan-Ai International is an action game and a new method of learning.
This free software is useful for people learning any kind of subject.
World map related questions and Japanese language questions are prepackaged.
On top of that, you can change questions by adding or changing the external textfiles.
And surprisingly, it also helps strengthen your ability to do mental calculations.
From now on, your knowledge will be improved by nothing but play a game.