Crazy, "zoom" in on the graph. http://vgchartz.com/hwlaunch.php?cons1=PS®1=Japan&cons2=PS2®2=Japan&cons3=PS3®3=Japan&weeks=60
It is tracking under the Ps1. Remember, the Ps1 had a bad start, because everyone though Nintendo were going to create the best console. Therefore, it had fairly week sales in the beginning.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS