Here is the full list of all 24 A.R.E.S.: Extinction Agenda achievements.
Finish all of the stages without using a single repair kit
Finish all of the stages without dying
Destroy 1000 enemies
Achieve Synthesis Soldier rank 'S'
Achieve Synthesis Soldier rank 'SS'
In Hard Mode, defeat all the bosses using only the Zytron Blaster
Collect all the Data cubes
Trick a Bomber to hit and destroy a Zytron Walker (LA)
Finish the game once
Achieve Synthesis Soldier rank 'A'
Watch all the cut-scenes without skipping
Collect 1000 units of each material type
Perfect the Carrion boss fight
Maximize your attack combo
Upgrade one of your weapons to its maximum level
Perfect the Prime Guardian boss fight
Finish all of the in-game tutorials
Perfect the Sentinel boss fight
Stun 10 enemies with the EMP grenade
Destroy 10 enemies, using your Dash Attack
Destroy 5 or more enemies, at once with Valkyl's Zypher Cannon
Perfect the Goliath boss fight
Destroy 20 enemies, using your Grenade Attack
Discover and use your first repair machine