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.
Defeat stage 2 boss "Kaiser"
Defeat 100 enemies
Defeat stage 1 boss "Kaina"
Reach "Mitsurugi" zeal level
String 100 hits
Defeat 10 enemies
Perform the holy technique "Divine Wind"
Use Zanshin to defeat an enemy
String 50 hits
Perform the holy technique "Celestial Judgement"
Watch the tutorial
Clear Easy difficulty
Clear Normal difficulty
Clear Hard difficulty
Clear Very Hard difficulty
Defeat stage 3 boss "Suzuka"
Defeat stage 4 boss "Magatsu Kaina"
Defeat stage 5 boss "Magatsu Suzuka"
Defeat stage 6 boss "Magatsu Hino Tsurugi"
Defeat 1000 enemies
Use Zanshin to defeat 50 enemies
Use Zanshin to defeat 100 enemies
Perform a Just Guard
Perform 10 Just Guards
Perform a Counter
Perform 10 Counters
Perform a Flourish
Perform 10 Flourishes
Complete all upgrades
Collect 100,000 SP
Max out Life Gauge
Max out Katana Gauge
Clear Inferno difficulty