Samurai Warriors: Katana
This game is titled Samurai Warriors: Katana in North America, Europe, and Australia, and Sengoku Musou Katana in Japan.
Successfully complete all stories with an "S" rank.
Successfully complete all four stories with a "Silver" or higher rank.
Additional item slots
Enter the Buy/Ability menu. Purchasing all the upgrades for the stat in the indicated level you are in (for example, attack, defense, life, Musou) to unlock another item slot.
- Third slot: Musou: Acendancy
- Fourth slot: Musou: Swordsman
- Fifth slot: Musou: Stealth