i wouldn't call Grand Slam Tennis sales terrible:
it's new IP,
it's western game,
it didn't have much advertisement if any in japan,
it's a sports title and aside from football games like PES, baseball games, rape-schoolgirl-in-crowded-train games, and fondle-breasts-of-some-overboobied-japanese-cgi-ladies games not many sports games sell.
i wouldn't be suprised if most of those sales were made by foreigners who live in japan.







