Let's talk about the good sales of a PSP game that isn't called Monster Hunter for one second, if you don't mind. The PSP-exclusive prequel to Final Fantasy VII has made quite a bit of dough for Square Enix, as the company revealed updated sales numbers for the game. Since its release, it has seen nearly 2 million units sold across the world, with Japan buying the largest amount: 820k units. North America resulted in 610k sales, and Europe is responsible for 460k.
The strong figures for Crisis Core may be why Square Enix has such a strong lineup of games planned for PSP. Compared to their DS games (Final Fantasy IV) and Wii games (Dragon Quest Swords), Crisis Core has easily resonated the most with its audience.