Square Enix’s Final Fantasy XIII has become the first game to sell more than a million units on PlayStation 3 in Japan, and it reached the milestone in a single day.  As reported in Business Insider, the game moved more than a million units on launch day to break the PS3 record.  It has since doubled the lifetime tally for previous PS3 record holder, Konami’s Metal Gear Solid 4, moving more than 1.5 million units in its first four days on shelves.  Business Insider says the game also helped sales of PS3, with Sony s console setting its own weekly sales record in Japan with more than 245,000 units sold last week.

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