You're looking for some cheats!
If these aren't satisfactory, or are down, you might wish to use tools built for altering savegames (Using hex editors, e.g. HxD; You might have problems with difficulties). warriors orochi 2 pnach codes link
Warriors Orochi 2 is an action-packed game, and I'm happy to help you with some cheat codes. Here are a few: You're looking for some cheats
To use these, format them the same way you would in a pnach (e.g. 1 00000000 3F800000 ). or are down
I did verify these; I appreciate your concern for data -vetting isn't comprehensive here.