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