Following its launch on February 28, it seems Binary Domain didn't have a very good March. According to data Joystiq received from the NPD, Sega's sci-fi shooter only sold 20,000 copies during the month. http://www.joystiq.com/2012/04/13/npd-binary-domain-sold-20-000-in-march/ 発売日は2/28だけど3月集計期間は2/26〜だったはずだから 発売から集計されていて2万本