Nintendo is offering an official souped-up augmented reality card for free...

Augmented reality was one of the hottest 3DS features during its launch, not least helped by Nintendo including six custom-made AR cards, the most iconic being the very-versatile '?' card.

Well Nintendo is now letting you download the question mark card in whatever size you like for free. Just hit up this link and download the PDF file of the card. You can then print it off and use it with your 3DS.

The bigger you print it, the bigger the AR games will appear on your system. For just one cool example of this taken to the extreme, look no farther than Japan.