checked-no =>Chaos Difficulty Mode: Earn an S ranking in all missions of the game to unlock Chaos mode. =>Extra Item Slots: Completely upgrading all stats for your level will give your character extra item slots. Upgrade all stats in Musou Ascendancy for a third slot, Musou Swordsman for a fourth slot, and Musou Stealth for a fifth slot. =>Extra Story: Complete all four stories with at least a Silver rating to unlock the fifth story.