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