While software sells are less than pleasant here in the states, it seems Japan has some pride left in the PSP, with a swarm of sales appearing with the launch of Dissidia. After it's debut week in Japan, Dissidia sold almost half a million copies, 489,126 to be exact. This performance topped every other console in software sales for the week, boosting PSP sales as well, with 145,957 units reportedly sold.
In other Japanese news, following Disgaea's success on the PSP, it's sequel will soon find it's way onto the Portable. While it won't be a direct port, the upcoming title will feature from gameplay improvements, including an easier menu system and a refined camera system. Disgaea 2 will arrive in Japan on February 26th of next year.