<div style='font: 12pt ; text-align: left; '>You can't measure a games sales success based completely on sales in the first few weeks. Especially this early in the systems cycle. Remember GE007 after two months had only sold a few hundred thousand, a few years later it had become one of the highest selling videogames in history.
Also, keep in mind that Ocarina of Time was released to a larger userbase at a much later time in the consoles lifetime. After 8 weeks it hadn't sold much better than Wind Waker has now. Ocarina of Time also had the largest promotional campaign of any video game in history backing it. Ocarina of Time was also the fastest selling game in the history of videogaming, no game has come close to selling 7 million copies world wide in 6 weeks. Wind Waker is currently the second place title overall on the console charts only behind Mario Party, I don't think that's bad at all, especially since its got quite a distance on it in comparisson to other titles.
I don't remember Mario 64's sales, but I can make a good guess on the reason for Mario Sunshine's bad sales. The difficulty was too hard, there were a ton of complaints about that. It's actually one of the most difficult mainstream series titles to come out of Japan (just compare it to other high sellers, older Mario games, Dragon Quest, Final Fantasy, etc..).</div>
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