Here is the full list of all 85 Final Fantasy IX achievements. It takes around 80-100 hours to unlock all of the achievements on Windows.
View 79 Active Time Events.
Defeat 10000 enemies.
Beat the Nero Brothers' shuffling game nine times in a row.
Purchase all items available from Stiltzkin.
Obtain a miniature copy of the Prima Vista.
Receive certification as a Rank S Treasure Hunter.
Defeat Behemoth in the Treno weapon shop using Dagger.
Obtain Athlete Queen.
Win 100 Tetra Master matches. (Certain NPCs can be re-challenged to increase your win count after progressing through the game.)
Defeat Ozma.
Have a single character affected by all status ailments. (both beneficial and detrimental).
Synthesize 30 items.
Repair the machine at Mognet Central.
Obtain a bottle of Superslick.
Obtain 4 moonstones.
Gain the favor of all friendly enemies.
Correctly answer all the questions in Ragtime Mouse's pop quiz.
Uncover the secret of the Eidolon Wall.
Successfully catch a golden frog.
Visit every beach in Gaia.
Obtain the Hammer.
Receive 10 rewards from Queen Stella.
Locate all hidden treasures on the world map.
Activate the Rebirth Flame ability when all party members are incapacitated.
Summon Eidolons 50 times.
Use Blue Magic spells 100 times.
Use White Magic spells 200 times.
Raise your chocobo's beak level to 99.
Successfully catch 99 frogs.
Use Black Magic spells 100 times.
Form a party with Quina Quen and three female characters.
Obtain the complete set of Genji armor.
Obtain the Gastro Fork.
Obtain Kain's Lance.
Obtain Excalibur II.
Obtain the sacred blade Excalibur.
Obtain the Tiger Racket.
Obtain the Ultima Weapon.
Obtain the Angel Flute.
Obtain the Whale Whisker.
Obtain the Tower.
Summon the eidolon Madeen.
Summon the eidolon Phoenix.
Summon the eidolon Ark.
Summon the eidolon Odin.
Summon the eidolon Atomos.
Acquire all available support abilities.
Summon the eidolon Bahamut.
Summon the eidolon Leviathan.
Attain level 99 with at least one character.
Play the blackjack minigame.
Complete FINAL FANTASY IX.
Defeat Lich, the Guardian of Earth.
Obtain the Mace of Zeus.
Defeat Kraken, the Guardian of Water.
Defeat Tiamat, the Guardian of Wind.
Obtain the Rune Claws.
Defeat Maliris, the Guardian of Fire.
Defeat 1000 enemies.
Summon the eidolon Carbuncle.
Summon the eidolon Ramuh.
Obtain an airship.
Form a party with four male characters.
Win 10 items at the Treno Auction House.
Summon the eidolon Fenrir.
Receive 30 back attacks.
Free Kuppo from a wall in Fossil Roo.
Obtain Madain's Ring via mining.
Synthesize 10 items.
Guide all the residents of Cleyra to safety.
Summon the eidolon Shiva.
Summon the eidolon Ifrit.
Win 10 Tetra Master matches.(Certain NPCs can be re-challenged to increase your win count after progressing through the game.)
Use the Defend command 50 times.
Enter trance 50 times.
Defeat 100 enemies.
Use the Steal command 50 times.
Win with Vivi during the Festival of the Hunt.
Win a Tetra Master match.
Receive a Very Good Omen from a color fortune.
Cause Moguo to have a tantrum.
Enter Trance for the first time.
Have the nobles demand an encore.
Jump rope 1000 times without tripping and obtain King of Jump Rope.
Jump rope 100 times without tripping.