For your information, the launches of Luigis Mansion: Dark Moon and Pokémon Mystery Dungeon: Gates to Infinity in late March improved the situation for Nintendo 3DS in the U.S.
The successive releases of other much-anticipated titles since then have more than doubled total first-party software sales counting from April compared to last year. Thanks to the revitalized Nintendo 3DS software market, the sales pace of the hardware has also showed a year-on-year increase since April in spite of a sharp decrease in the size of the entire U.S. video game market.