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