Here is the full list of all 56 KINGDOM HEARTS FINAL MIX trophies - there are 49 bronze, 4 silver, 2 gold and 1 platinum.
Obtain all trophies.
Clear Final Mix.
Get Sora to Level 100.
Collect all Jiminy's Journal entries.
Collect all Character entries in Jiminy's Journal.
Collect all Ansem Reports in Jiminy's Journal.
Defeat Sephiroth in the Platinum Match at Olympus Coliseum.
Obtain all Keyblades.
Defeat Kurt Zisa in Agrabah.
Defeat the Mysterious Man in Hollow Bastion.
Obtain all shields.
Obtain all gummi ship blueprints.
Synthesize all items.
Obtain all staves.
Defeat the Phantom at the Clock Tower.
Defeat the Ice Titan in the Gold Match at Olympus Coliseum.
Win the Hades Cup.
Collect all Story entries in Jiminy's Journal.
Synthesize 30 types of items.
Shoot down over 2,500 enemies with your gummi ship.
Collect all Trinity List entries in Jiminy's Journal.
Synthesize 15 types of items.
Seal the keyhole in 100 Acre Wood.
Collect all Mini-game entries in Jiminy's Journal.
Clear gummi ship mission 3.
Win the Pegasus Cup.
Complete any time trial challenge.
Complete any solo challenge.
Clear gummi ship mission 2.
Clear Final Mix on Proud.
Defeat over 2,000 Heartless.
Clear all gummi ship routes.
Synthesize 3 types of items.
Synthesize an item for the first time.
Seal the keyhole in Atlantica.
Obtain over 10,000 Munny.
Win the Phil Cup.
Clear the game without changing equipment.
Clear the game without using a continue.
Clear Final Mix on Beginner.
Defeat the World of Chaos in the End of the World within 15 hours.
Collect all 101 Dalmatian entries in Jiminy's Journal.
Open 100 treasure chests.
Seal the keyhole in Olympus Coliseum.
Win the Hercules Cup.
Seal the keyhole in Hollow Bastion.
Obtain the Oathkeeper Keyblade.
Seal the keyhole in Traverse Town.
Seal the keyhole in Never Land.
Seal the keyhole in Halloween Town.
Escape from Monstro.
Seal the keyhole in Agrabah.
Clear gummi ship mission 1.
Seal the keyhole in Deep Jungle.
Seal the keyhole in Wonderland.
Modify a gummi ship and update the data.