Full list of all 33 Mitsurugi Kamui Hikae achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox One.
Perform 10 Flourishes
Clear Easy difficulty
Defeat stage 6 boss "Magatsu Hino Tsurugi"
Defeat stage 5 boss "Magatsu Suzuka"
Defeat stage 4 boss "Magatsu Kaina"
Max out Life Gauge
Defeat stage 3 boss "Suzuka"
Perform a Flourish
Perform 10 Counters
Perform 10 Just Guards
Defeat stage 2 boss "Kaiser"
Use Zanshin to defeat 100 enemies
Perform a Just Guard
Perform a Counter
Defeat 100 enemies
Defeat stage 1 boss "Kaina"
Use Zanshin to defeat 50 enemies
Perform the holy technique "Divine Wind"
Perform the holy technique "Celestial Judgement"
Reach "Mitsurugi" zeal level
Defeat 10 enemies
Use Zanshin to defeat an enemy
String 100 hits
String 50 hits
Watch the tutorial
Clear Normal difficulty
Clear Hard difficulty
Clear Very Hard difficulty
Defeat 1000 enemies
Complete all upgrades
Collect 100,000 SP
Max out Katana Gauge
Clear Inferno difficulty