Just got mine from play-asia.
Buy this game.
With the tilt sensor, it is really fun.
I shake my GBASP like mad to make sure that I won't get caught by a boulder
http://www.konamijpn.com/products/yugioh_sugoroku/
There are 5 dice (3 big dice and 2 smaller ones) on the middle of the page.
Click the middle one of the 3 big dice, then you will see the rules of this game.
Bable fish might help, I think.
GAME watch website says that it is a simulation adventure game.
Here is the official website (in Japanese): http://www.tomy.co.jp/gamesoft/narutokonoha/