In the PSP exclusive dungeons you only control one hero instead of three. You’ll be able to play as Shiren, Asuka, and Sensei in individual challenges. Shiren the Wanderer 3 Portable also has a rescue system (ad-hoc or password) and an online ranking mode.
Importers can pick up Shiren the Wanderer 3 Portable on January 28. Atlus will release the Wii version as Shiren the Wanderer here on February 9.