As Nintendo attempts to get its eShop up to speed with Sony's PS Vita provision, it's finally announced a July 28th launch date for its first two downloadable games. Alongside the in-store release of the 3DS XL, the full versions of both Super Mario Brothers 2 and the latest iteration of Dr. Kawashima's Brain Age / Training will be available for online purchase in Japan, priced at 4,800 yen (around $61) and 3,800 yen ($48), respectively. Nintendo already offers a mixed bag of retro titles and demos to download, but this is the first time it'll wheel out fully-fledged 3DS games.