Here is the full list of all 43 Record of Agarest War Zero achievements worth 1,000 gamerscore.
Encountered the worst enemy.
You have all the titles. Good work!
Dealt 10,000,000 points of damage.
Combine monsters 100 times.
Try and get a hit count of 650.
You have more than 100 titles.
Enhanced items over 5,000 times.
Engaged in 2,500 battles.
Defeated 10,000 enemies.
Completed the monster picture book.
Defeated the four types of hidden monsters.
Changed Ellis's appearance.
Unlocked all profiles.
Cleared the digest route.
Defeated the monstrous Decimal. Haven't eaten him yet, though.
Successfully executed a distinctive Special Art.
You have visited the hot springs.
Saw the true ending.
Cleared Generation 2.
Cleared all the hidden dungeons.
You have visited the beach.
Changed your class.
Created a marionette.
Overkilled 500 enemies.
Successfully executed a Special Art.
Sold 1,000 items.
Went shopping 500 times.
Cleared Generation 1.
You reached the end of a generation with at least one woman completely in love with you.
Combined monsters.
Captured a monster.
Nope, he did it again.
Converted an item.
Got your first title! Keep it up and earn some more.
Defeated an opponent with an Overkill.
Your luck has exceeded 50.
Your intelligence has exceeded 50.
Your agility has exceeded 50.
Your vitality has exceeded 50.
Your strength has exceeded 50.
Earned 10,000 TP.
Earned 25,000,000 EP.
Earned 25,000,000 G.