Here is the full list of all 12 Castle of Illusion Starring Mickey Mouse trophies - there are 7 bronze, 4 silver and 1 gold.
Find all the Magic Diamonds.
Collect all of Donald's Chili Peppers.
Complete all Castle Statues.
Collect all the Magic Playing Cards.
Complete a stage in Time Attack.
Bounce on 7 enemies in a row without touching the ground.
Defeat Mizrabel and rescue Minnie.
Complete a Castle Statue.
Find 50% of all Magic Diamonds.
Break the illusion of 75 enemies.
Break the illusion of 25 enemies with projectiles.
Collect 50 Diamonds to unlock your first Painting in the Castle