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.
Shoot down over 2,500 enemies with your gummi ship.
Open 100 treasure chests.
Clear gummi ship mission 3.
Clear gummi ship mission 2.
Defeat the Ice Titan in the Gold Match at Olympus Coliseum.
Obtain all Keyblades.
Obtain all staves.
Obtain all shields.
Collect all Story entries in Jiminy's Journal.
Clear Final Mix on Proud.
Clear game on Final Mix or a higher difficulty level.
Seal the keyhole in 100 Acre Wood.
Synthesize all items.
Synthesize 30 types of items.
Synthesize 15 types of items.
Obtain 30 or more gummi ship blueprints.
Synthesize 3 types of items.
Synthesize an item for the first time.
Collect all 101 Dalmatian entries in Jiminy's Journal.
Defeat over 2,000 Heartless.
Collect all Mini-game entries in Jiminy's Journal.
Collect all Character entries in Jiminy's Journal.
Defeat the Phantom at the Clock Tower.
Obtain over 10,000 Munny.
Collect all Ansem Reports in Jiminy's Journal.
Collect all Jiminy's Journal entries.
Collect all Trinity List entries in Jiminy's Journal.
Defeat the Mysterious Man in Hollow Bastion.
Defeat Kurt Zisa in Agrabah.
Defeat Sephiroth in the Platinum Match at Olympus Coliseum.
Win the Hades Cup.
Clear game on Final Mix: Beginner or a higher difficulty level.
Clear the game without changing equipment.
Clear the game without using a continue.
Defeat the World of Chaos in the End of the World within 15 hours.
Complete any time trial challenge.
Complete any solo challenge.
Modify a gummi ship and update the data.
Get Sora to Level 100.
Clear all gummi ship routes.
Seal the keyhole in Hollow Bastion.
Obtain the Oathkeeper Keyblade.
Seal the keyhole in Atlantica.
Seal the keyhole in Olympus Coliseum.
Win the Hercules Cup.
Win the Pegasus Cup.
Win the Phil Cup.
Seal the keyhole in NeverLand.
Seal the keyhole in Halloween Town.
Escape from Monstro.
Seal the keyhole in Agrabah.
Seal the keyhole in Traverse Town.
Clear gummi ship mission 1.
Seal the keyhole in Wonderland.
Seal the keyhole in Deep Jungle.