Here is the full list of all 50 Saint Seiya: Soldiers' Soul achievements.
Acquired all Trophies!
Collected 100% of Big Bang Attack movies in the collection!
Completed the collection!
Used Siegfried to defeat all of the Marinas!
Collected 100% of Assist Phrases!
Used Deathmask (Surplice) to defeat Mu after being hit by his Crystal Wall!
Used Mu to defeat Deathmask (Dark Cloth) and Aphrodite (Dark Cloth) 3times each!
Used Rhadamanthys to defeat Orphee, Sorento and Mime 3 times each!
Used Alberich to defeat all of the God Warriors!
Unlocked all of the Bronze Saints!
Unlocked all of the Silver Saints!
Unlocked Poseidon, Thanatos, Hypnos, Athena and Hades!
Unlocked all of the Marinas!
Maxed out Assist Phrase slots!
Cleared all chapters in Legend of Cosmo to 100%!
Collected 50% of Assist Phrases!
All God Cloth Gold Saints have all been unlocked!
Completed the Galaxy War God Cup!
Used Ichi to clear Survival! (Any class)
Used Jabu to clear Survival! (Any class)
Completed the Galaxy War Legend Cup!
Unlocked all of the Gold Saints!
Used Poseidon (Tuxedo) to defeat Athena 3 times!
Completed the Galaxy War Gold Cup!
Collected 80% of titles!
Completed the Galaxy War Silver Cup!
Lost a battle without landing a single attack!
Completed the Galaxy War Bronze Cup!
Obtained 100% of possible "S" clear ranks in Legend of Cosmo!
All God Cloth Bronze Saints have all been unlocked!
Completed the Big Bang Survival Class!
Used Kaasa to defeat Seiya, Shun, Hyoga and Ikki!
Completed the God Survival Class!
Completed the Legend Survival Class!
Completed the Gold Survival Class!
Performed 50 Cosmic K.O.s!
Experienced the Tutorial!
Completed the Silver Survival Class!
Completed the Bronze Survival Class!
Cleared the Hades arc in Legend of Cosmo!
Unlocked all of the Specters!
Cleared 50% of the challenges in Legend of Cosmo!
Acquired a total of 100,000 CP!
Cleared the Poseidon arc in Legend of Cosmo!
Hit with a total of 30 Big Bang Attacks!
Cleared the Asgard arc in Legend of Cosmo!
Unlocked all of the God Warriors!
Cleared the Sanctuary arc in Legend of Cosmo!
Cleared your first challenge!
Obtained first "S" clear rank! (Any mode)