PC-story mode->extra?

[Volcompat321]

is ther an extra mode on pc version of PSU, AOTI? please let me know by pm-ing me, since i prob wont be checking back here much...maybe i will tho..
also, is the extra mode unlocked by playing through story mode, just like the ps2 version?

[Dhylec]

PS2 & PC versions has offline modes, for both original PSU & AoI editions.