Perfect! Like Brain Age with your face!
I don't know a single word in Japanese or even how to read Japanese characters, but this is one game I would NOT pass up, regardless of your knowledge. The camera is sleek and works with a Lite and a standard DS, and the quality is surprisingly great! It even comes with a stand to prop your DS up.

The game works just like Brain Age, if you've played it. You do a few exercises each day, and stamp a calender as you go. You have options to do other fun exercises too. You can also unlock fun tools like an animator!

The gameplay itself is pretty good. It uses unique facial feature detection, and locates every part of your face as need be. It has a "guide" face that shows you what to do (helpful for English-speaking folk like me), so you can go along with it. At the end of the exercise, it'll show where you need to improve, or it will point out when you're not smiling! (a funny feature, i'd say)

Anyways, get this game. It's just awesome. It's fun to show to people, and it's fun to play by yourself. It's a great peripheral too. I highly recommend it!

Neat!
It looks intresting, maybe I will buy it in the future.