i agree with almost everyone, layton the 1st, (second was WAY too short) pokemon (any), and zelda spirit tracks. AND children of mana, an underrated game.i plan on getting an dragon quest game soon.
As dorky as it may sound, I really like the Language Coach games. They have French, Japanese, Spanish, and Chinese. If any of those interest you, I would really suggest picking one up. They won't make you a fluent speaker, but they're very good beginner tools. I'm using the Japanese one now, and I've learned about 180 words so far.