Sounds Japanese, doesn't it? Well guess what: it's French!
You're provided with a tray, some marbles, a tool and a booklet. The goal is to try to make the shapes shown in the booklet.
As you can notice at a first glance the tray has 2 sides (one triangular and one squared side) with holes inside, but not holes are the same. Some are "regular" holes and some are a bit bigger. And no it's not a default: it's made on purpose of course. One can ask why. Well, because do make the shapes with the marbles you will need to take out some marbles with the magnetic tool, and thus taking marbles from a regular hole can not be possible all the time...
So the challenges begin on which side of the board you want to make the sculptures and from which holes.
The magnetic tool is useful to take out some marbles. It's composed of a stick with a magnet that you can slide. I was sceptical at the beginning because I thought that it could attract all the marbles and make my solids crumble. But it's not the case. First because it's not a powerful magnet, and then because if you slide the magnet you can "cancel" the magnet attraction of the tool. You will need to get used to it, because it's practical.
I think you can easily guess why the label is "dexterity". Well, not only dexterity but also patience and thinking. But still dexterity because you need to be careful when you take out some marbles with the tools, you need to take the correct marbles, and sometimes the tool becomes useless and you need to use....your hands!
About the difficulty, it's high: you need to think about how you can create the solids, which balls to take out, etc. And the frustration is when you've almost completed the solids but you make it crumble because of a small move....Better not to play outside when it's windy (even a small wind!).
To conclude: a nice game, available HERE. And for the price you're sure to make a good bargain!
My version is the "basic" version but you can have upgraded versions. Just look at the website what they have to offer.