This game is part of a trilogy. The other two games in the series will cause increases in sales through indirect advertising and new fans of the series wishing to play the first game in the series (this). That probably won't be enough to push this game up to 740K, but looking at how long other games (New Super Mario, Brain Age, Yoshi's Island etc.) have stayed in the charts, it still a possibility. Something like 700K would be more accurate, though, at least until we get a better bearing of how long this will stay in the charts.
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