Here is the full list of all 35 Final Fantasy X-2 HD Remaster trophies - there are 22 bronze, 7 silver, 5 gold and 1 platinum.
Defeat Trema
Roll the same number on all the Gambler's Dice
Obtain all dresspheres
Win 10 times at Sphere Break
Obtain Magical Dances, Vol. II
Reach the 10th floor of Iutycyr Tower
View one complete fiend tale
Use Mix 30 times
Pay off O'aka's debt
Defeat Vegnagun
Open the chest that includes the Ribbon in the Bevelle Underground
Listen to all of Maechen's stories
Complete an episode in Chapter 5
Defeat Zalamander
Complete the ability set for one dress
Help Clasko catch a chocobo by the end of Chapter 3
Defeat Bahamut
Reach the highest level (LVMAX) in Gunner's Gauntlet
Defeat YSLS-Zero
Obtain one special dress
Change dresspheres on Yuna, Rikku, and Paine in one battle
Obtain all available trophies
Learn 5 Blue Bullet skills
Win a blitzball match
Use Bribe 30 times
Achieve a 99 chain attack
Deal 99999 damage with one attack
Catch the Amazing Chocobo
Complete Shinra's Bestiary
Complete 100% of the main story
Reach the 20th floor of Iutycyr Tower and defeat the boss
Reach the 40th floor of Iutycyr Tower and defeat the boss
Reach the 60th floor of Iutycyr Tower and defeat the boss
Obtain treasure in the Tonberry area
Reach the 80th floor of Iutycyr Tower and defeat the boss