Here is the full list of all 39 Death end reQuest achievements.
View each and every possible outcome.
Transform into Glitch Mode countless times.
Defeat a powerful enemy in the Pain Area.
View Lydia's ending.
View Lucil's ending.
View Clea's ending.
View Al's ending.
View Lily's ending.
View Shina's ending.
View the normal ending.
Collect 80 of the episodes.
View Celica's ending.
Clear Chapter 11.
Defeat the final boss.
Learn 50 skills using Flash Drive.
Clear Chapter 10.
Collect half of the episodes.
Clear Chapter 9.
Transform into Glitch Mode a handful of times.
Clear Chapter 8.
Defeated countless enemies.
Clear Chapter 7.
Visit the Strain Area for the first time.
Clear Chapter 6.
Clear Chapter 5.
Clear Chapter 4.
Clear Chapter 3.
Rest in camp for the first time.
Clear Chapter 2.
Use a Summon for the first time.
Clear Chapter 1.
Use Install Genre for the first time.
Use a Code Jack for the first time.
Connect a Knockback combo with a party member for the first time.
Switch over into the real world.
Clear the Prologue.
Perform a Flash Drive for the first time.
Enter Glitch Mode for the first time.
Perform a Knockback for the first time.