Nintendo Co. sold three times as many Wii game machines in Japan last year as Sony Corp.'s PlayStation 3 consoles, researcher Enterbrain Inc. said.
Nintendo sold 3.63 million Wii units last year, compared with PlayStation 3's 1.21 million, Tokyo-based Enterbrain said Monday.
The researcher estimates that Microsoft Corp. sold 257,841 Xbox 360 game machines.
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