Here is the full list of all 45 SAMURAI SHODOWN achievements.
[DOJO] Defeat a ghost character 100 times.
Use the same character 100 times.
Perform a Blade Catch 10 times.
[ONLINE] Fight a Team Battle.
[GALLERY] Unlock 25 movies.
Defeat an opponent while unarmed for an entire battle.
[ONLINE] Fight a Ranked Match.
[ONLINE] Play one Casual Match.
[DOJO] Defeat a ghost character 50 times.
Use Rage Explosion 50 times.
Counter an opponent's attack 10 times.
Knock down an opponent with a Stance Break 10 times.
[STORY] Clear with four different characters.
[GALLERY] Unlock 15 movies.
[BATTLE] Finish Gauntlet Mode with any character.
Fill the Rage Gauge 50 times.
Defeat 10 opponents with Lightning Blade strikes.
[BATTLE] Win 5 successive victories in Survival Mode.
[BATTLE] Extend the timer by at least 150 seconds in Time Trial Mode.
[DOJO] Defeat a ghost character 10 times.
Defeat 10 opponents with Weapon Flipping Techniques.
Defeat an opponent by only kicking for an entire battle.
[DOJO] Defeat your own ghost.
[DOJO] Receive your first ghost.
[DOJO] Fight a ghost match.
[TUTORIAL] Complete all lessons.
Defeat 10 opponents with Super Special Moves.
Perform 10 Just Defenses.
Defeat an opponent for the first time using Lightning Blade.
Defeat 10 opponents using a Special Move.
Successfully use a Counter for the first time.
Successfully use Just Defense for the first time.
[STORY] Clear without using a Continue.
Win a round within 10 seconds of the start of battle.
[STORY] Clear with any character.
[STORY] Defeat the boss.
[STORY] Clear after using a Continue.
Defeat 10 opponents with heavy attacks.
Defeat an opponent for the first time using a Weapon Flipping Technique.
Defeat an opponent for the first time using a Super Special Move.
Obtain your first perfect victory.
Earned all achievements in the game.
[STORY] Clear with 12 different characters.
[STORY] Clear with 16 different characters.
[GALLERY] Unlock 17 pieces of artwork.