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