Samurai Warriors: Katana Cheats for Wii
At the 'Buy/Ability' menu purchase ALL stats upgrades for the level you're in to get additional Item Slots.
Unlock 3rd Item Slot:
In 'Musou: Acendancy' max out each stat level.
Unlock 4th Item Slot:
In 'Musou: Swordsman' max out each stat level.
Unlock 5th Item Slot:
In 'Musou: Stealth' max out each stat level.
When you have cleared ALL 4 stories with at least a Silver 'Clear' rating the 5th Story will became unlocked in the game.
Complete ALL the missions with an 'S' rank to unlock this difficulty setting which will test your skill in the game.