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