Here is the full list of all 56 KINGDOM HEARTS FINAL MIX trophies - there are 49 bronze, 4 silver, 2 gold and 1 platinum.
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 the Mysterious Man in Hollow Bastion.
Defeat Sephiroth in the Platinum Match at Olympus Coliseum.
Obtain all Keyblades.
Obtain all shields.
Defeat Kurt Zisa in Agrabah.
Defeat the Ice Titan in the Gold Match at Olympus Coliseum.
Obtain all staves.
Synthesize all items.
Synthesize 30 types of items.
Defeat the Phantom at the Clock Tower.
Win the Hades Cup.
Collect all Story entries in Jiminy's Journal.
Synthesize 15 types of items.
Obtain over 10,000 Munny.
Collect all Mini-game entries in Jiminy's Journal.
Complete any time trial challenge.
Complete any solo challenge.
Clear all gummi ship routes.
Collect all Trinity List entries in Jiminy's Journal.
Seal the keyhole in Hollow Bastion.
Seal the keyhole in 100 Acre Wood.
Collect all 101 Dalmatian entries in Jiminy's Journal.
Obtain the Oathkeeper Keyblade.
Defeat over 2,000 Heartless.
Open 100 treasure chests.
Seal the keyhole in Olympus Coliseum.
Win the Hercules Cup.
Synthesize 3 types of items.
Seal the keyhole in Never Land.
Synthesize an item for the first time.
Seal the keyhole in Halloween Town.
Seal the keyhole in Atlantica.
Win the Pegasus Cup.
Win the Phil Cup.
Escape from Monstro.
Seal the keyhole in Agrabah.
Seal the keyhole in Traverse Town.
Clear gummi ship mission 2.
Modify a gummi ship and update the data.
Seal the keyhole in Deep Jungle.
Clear gummi ship mission 1.
Seal the keyhole in Wonderland.
Obtain all trophies.
Clear Final Mix on Proud.
Clear Final Mix.
Clear Final Mix on Beginner.
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.
Obtain all gummi ship blueprints.
Shoot down over 2,500 enemies with your gummi ship.
Clear gummi ship mission 3.