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