The latest major 3DS system update has arrived, bringing Miiverse, the Nintendo Network ID and shared eShop balances to the portable. There are various aspects to figure out, and we've put together a detailed guide for you.
In any case, if you want a snappy, quick introduction to get you started with a Nintendo Network ID on your 3DS, Nintendo UK has produced a rather useful video that'll get you through the basics. With clean presentation and a cheery piano jingle, it's a good option for an initial run-through of the update's major features and initial setup steps.
Check it out below.