Activison only focus on western markets so that is why they only mention size of install base in those markets. I do not think Guitar Hero has been successful in Japan, they just released the same game as in US with same songs, both PS and Wii versions were released there.
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Activison only focus on western markets so that is why they only mention size of install base in those markets. I do not think Guitar Hero has been successful in Japan, they just released the same game as in US with same songs, both PS and Wii versions were released there.