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