Here is the full list of all 55 KINGDOM HEARTS Dream Drop Distance trophies - there are 47 bronze, 5 silver, 2 gold and 1 platinum.
Complete La Cité des Cloches as both Sora and Riku.
Rack up 300 or more Drop Points in a single turn.
Connect 6 or more points with a single Faithline.
Complete Traverse Town as both Sora and Riku.
Win a Flick Rush duel by lining up three 7s.
Create a party with 3 Spirits.
Perform an A-Rank dive.
Defeat the phantom Ursula and begin the Mark of Mastery exam.
Obtain all trophies.
Achieve 100% completion in Combat, Story, Items, and Game Records.
Achieve 100% completion in Combat.
Achieve 100% completion in Story.
Achieve 100% completion in Items.
Achieve a cumulative level of 100.
Drop 100 or more times.
Complete a dive without taking damage.
Make a purchase at every Moogle Shop.
Obtain all commands.
Obtain all recipes.
Obtain all Dream Pieces.
Complete The Grid as both Sora and Riku.
Complete Prankster's Paradise as both Sora and Riku.
Revisit and complete Traverse Town as both Sora and Riku.
Complete Country of the Musketeers as both Sora and Riku.
Complete Symphony of Sorcery as both Sora and Riku.
Complete The World That Never Was as both Sora and Riku.
View all flashbacks.
Achieve a Rush Level of 20.
Obtain 3,000 or more medals in Flick Rush.
Earn a score of 1,000 or higher on the Light Cycle.
Earn a score of 200 or higher in the Balloon mini-game.
Earn a score of 400 or higher in the Water Barrel mini-game.
Earn a score of 800 or higher in the Candy Goggles mini-game.
Use every Training Toy.
Create a party with 3 Spirits and make them all very happy.
Max out a Spirit's Affinity Level.
Breed a ★ Rank Spirit.
Unlock all nodes on any Spirit's Ability Link board.
Rescue Spirits 3 times in battle.
Max out and install all Support and Spirits abilities.
Defeat 5 or more enemies with a single hit in Slingshot.
Activate all Code Break commands.
Trap 6 or more enemies in Bubble Burst.
Activate all of Wonder Comic's effects at least once.
Defeat 4 or more enemies in one turn of Melody Catcher.
Sever all chains with a single slash 3 times in a row using Nightmare's End or Mirage Split.
Complete all Special Portals in Traverse Town as both Sora and Riku.
Complete all Special Portals in La Cité des Cloches as both Sora and Riku.
Complete all Special Portals in The Grid as both Sora and Riku.
Complete all Special Portals in Prankster's Paradise as both Sora and Riku.
Complete all Special Portals in Country of the Musketeers as both Sora and Riku.
Complete all Special Portals in Symphony of Sorcery as both Sora and Riku.
Complete all Special Portals in The World That Never Was as both Sora and Riku.
Complete all 7 Link Portal bonus objectives.
Complete all Secret Portals as both Sora and Riku.