Nintendo will be giving retailers a means of selling downloadable 3DS games via game-specific download cards. Cards for New Super Mario Bros. 2 and Demon Training will go on sale on July 28 at 7-Elevens throughout Japan. The cards will carry the same price as all versions of the games, respectively ¥4,480 and ¥3,580.

As with similar cards for other systems, these contain a download code which you input into the 3DS e-Shop to download the game.