Here is the full list of all 31 A.R.E.S. Extinction Agenda EX achievements.
Perfect all the boss fights in Hardcore Mode
Perfect the Minos Cannon boss fight
Achieve character level '6'
Achieve character level '5'
Perfect the boss fight in chapter 5 with Ares
Perfect the Sentinel boss fight
Perfect the Prime Guardian boss fight
Perfect the boss fight in chapter 5 with Tarus
Perfect the Carrion boss fight
Finish the game with Ares
Finish every chapter without using repair
Achieve 99 attack combo
Upgrade every weapon and ability to its maximum level
Collect all the Data cubes
Collect all Upgrade chips
Beat the boss in chapter 5 with Ares
Perfect the Zypher Pod boss fight
Finish the game with Tarus
Achieve character level '4'
Acquire all abilities and weapons
Find the drone repair bay
Beat Zypher Pod with Ares
Beat the boss in chapter 5 with Tarus
Upgrade one of your weapons to its maximum level
Beat Carrion with both Ares and Tarus
Destroy 5 or more enemies, at once with Solar Strike
Perfect the Goliath boss fight
Get stronger!
Break the enemy’s shield with Plasma Shock or Lockdown
Beat Zytron Walker, Zytron Trooper and Zytron Booster with Tarus
Beat Goliath