Here is the full list of all 38 SAMURAI MAIDEN achievements.
Cleared the Main Story on Normal mode.
Defeated the Demon Lord.
Cleared all of Komimi's Bubble Pockets on Normal mode.
Cleared all of Hagane's Bubble Pockets on Normal mode.
Cleared all of Iyo's Bubble Pockets on Normal mode.
Unlocked all memories of Komimi.
Unlocked all memories of Hagane.
Unlocked all memories of Iyo.
Defeated a total of 5,000 enemies.
Used a Decoy.
Performed Devoted Heart with Komimi.
Performed Devoted Heart with Iyo.
Performed Devoted Heart with Hagane.
Used a Bomb.
Defeated Shingen Takeda.
Defeated Kenshin Uesugi.
Defeated a total of 1,000 enemies.
Activated Komimi's Ninjutsu.
Used a Mine.
Activated Hagane's Ninjutsu.
Used a Recovery Potion.
Unlocked a memory in the Album.
Activated Iyo's Ninjutsu.
Used a Timed Bomb.
Enhanced a weapon for the first time.
Activated Komimi's Ninja Skill 1, Ice Smash.
Activated Hagane's Ninja Skill 1, Lightning Fist.
Activated Iyo's Ninja Skill 1, Tsubame Fireworks.
Acquired all trophies.
Achieved S on all battlefields across all difficulty levels.
Cleared the Main Story on Hard mode.
Cleared the Main Story on Demonic mode.
Enhanced all of Tsumugi's weapons to the max level.
Enhanced all of Iyo's weapons to the max level.
Enhanced all of Hagane's weapons to the max level.
Enhanced all of Komimi's weapons to the max level.
Collected all memory fragments.
Defeated a total of 15,000 enemies.