Thank you for helping us by reporting bad content.
PSP version has new features and improvements. Tecmo Koei announced it will launch three Special Warriors Orochi for PSP and will include some new features like Ayane Ninja Gaiden Sigma 2.
Later versions of the PlayStation 3 and Xbox 360, this version will include a new Special Battle Royale mode in which up to four players can battle, presumably via ad-hoc.
If they are owners of the PlayStation 3 version can transfer your save to the PSP and immediately unlock all the characters.
Warriors Orochi 3 Special arrives in Japan on 19 July and nothing has been reviewed on an English version or even on compatibility Vita.