Studing in the game of DS.

Do you know "Eigoduke"? It is a game of DS;portable electronic game. It was used at a class of junior high school in Kyoto. And, student's English grades went up. That is very interesting for me! I have used it. It's so fun. I didn't feel that is studying. I think junior high school students is not accustomed to English. In my opinion,they had better study English by game.They probably feel English is exciting. I wanted to study English by DS when I was junior high school student. How about you?