Pokemon X/Y’s Japanese sales see quicker drop than Black/White, but no need to panic
Pokemon X and Y sold another 473,000 copies across Japan in its second week, but the game’s sales dropped by 75 percent. Before you get too concerned, keep in mind that this may sound more troubling than it actually is.
Pokemon Black/White experienced a similar drop, but not quite as steep. Sales of the DS games obtained higher first week sales with a 70 percent decrease in its second week.
Note that when Black/White launched, the DS had a userbase that was over twice the size as the 3DS’ total (30 million versus 13 million). Pokemon X and Y are also competing for gamers’ attention, as Monster Hunter 4 launched in Japan not too long ago.