Here is the full list of all 39 Tales of Symphonia achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Cleared the game with the difficulty set to "Mania." Were the battles epic?
Genis has obtained all titles. Fear the younger brother.
You completed the Collector's Book! You must now know the true meaning of the universe.
Raine has obtained all titles. She's scary, but she heals you.
Defeated Kratos, Yuan, and Mithos in Forbidden Anamnesis. You just caught a lucky break.
You completed the Monster List! So how many monsters did you kill?
Sheena has obtained all titles. The most powerful summoner that commands the summon spirits.
Presea has obtained all titles. She'll keep swinging that ax.
Lloyd has obtained all titles.
Kratos has obtained all titles. He is everyone's hero.
Defeated Zelos' sister Seles in the Coliseum. Sisters are tough.
Defeated Gar, Farah, and Meredy in the Coliseum. Nice going!
You obtained one million casino chips!
You played 100 hours! Thanks for playing! (I hope you were playing.)
Defeated all 3 Sword Dancers. You can open a weapon shop with all their swords. But that's too much work.
Presea has obtained 10 titles. She looks like a child.
Defeated Abyssion. So there!
Regal has obtained 10 titles. Just look at his abs.
Zelos has obtained 10 titles. He's killing it.
Sheena has obtained 10 titles. Mysterious in an assassin way?
Your maximum hit number is 100! Why do your enemies even try?
What is the name of this tree?
You've encountered 1,000 battles! Battles never end.
Raine has obtained 10 titles. Professor Raine can be scary, but she is very kind at heart.
Lloyd and his party can now move between the two worlds.
Colette has obtained 10 titles. She's not ditzy all the time!
Lloyd has obtained 10 titles. He has many titles as a swordsman, but does that mean he's a great swordsman?
Genis has obtained 10 titles. Ball and stick is godly.
Lloyd and his party have now arrived in Tethe'alla.
Performed a mystic arte for the first time. Win gracefully!
Performed a unison attack for the first time. Everyone was in unison.
You've encountered 100 battles! Don't let your guard down.
Customized a weapon for the first time. There is no such thing as a useless weapon.
Cooked for the first time. Don't worry about messing up, just keep challenging yourself!
Your maximum hit number is 10! Work with your friend and pummel the enemy!
Colette has obtained all titles. I guess you love Colette?
Zelos has obtained all titles. He has bewitched all women.
Regal has obtained all titles. They're just filled with Regal's greatness.
Cleared the game with the difficulty set to "Hard." Challenge "Mania" next time.