Surprising no one, Dissidia was numero uno on last week's Media Create Japanese sales charts, selling an astonishing 489,126 copies. Did it have the best debut week ever for a PSP title in Japan? Of course not, not even close -- that honor belongs to Monster Hunter Portable 2nd G, which managed to push 820,000 copies out the door in its first week, according to PSPHyper. However, it did beat out another Final Fantasy spinoff, Crisis Core, by 3,000 units.

On the hardware side, it was also a healthy week for the PSP: our beloved portable saw 145,957 units in sales, though it was still bested by the DS, which sold 204,144 units. Now the real question is, does Square Enix's fan-service brawler have the momentum it takes to be top dog again next week? Sales numbers and ranking for the top 10 Japanese games of the week are after the jump