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