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