Images/date/200505

images/date/

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Comparison of Japanese top sellers on DS and PSP.  The legend is gone, but I believe it's gray (DS first party), pink (DS third party), black (PSP first party), blue (PSP third party).

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Nearly identical; it appears I made one bar the wrong color and fixed it.

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DS and PSP weekly sales, probably from the beginning of the year on.

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Year to date chart for all systems.

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A few sample images showing off an earlier version of the Dennis Miller Reference Generator.

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Another DS vs PSP weekly sales chart, but with another line combining GBA with DS.

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DS's (blue-ish) and PSP's (red-ish) weeks arranged from worst to best.  Probably another way to show that while they had many similar weeks, DS's highs were higher.