Here is the full list of all 32 Aegis Defenders trophies - there are 16 bronze, 9 silver, 6 gold and 1 platinum.
Complete an Entire Area without Dying
Complete Chapter 1
Kill 200 Enemies
Discovered Aegis
Kill 100 Enemies
Collect 5 Relics
Unlock Bart
Unlock Clu
Platinum Trophy
Complete Chapter 2
Complete Chapter 3
Complete Chapter 4
Complete Chapter 5
Complete Chapter 6
Unlock Kaiim
Unlock Zula
Collect 15 Relics
Collect All Relics
Kill 300 Enemies
Defeat the Breath Dragon
Defeat the Zanoh
Defeat the MadXArmor
Beat the Game on Hard
Beat the Game on Insane
Buy 5 Items
Buy 15 Items
Buy All Items
Earn 50 RP from Dialog Choices
Complete the Game without Dying
Obtained the Blood of a God
Rescued Shreya
Found Kobo and the Clarent