Here is the full list of all 20 Rez Infinite achievements.
Achieve the high score in boss rush mode.
Achieve a 100% shot down rate and item collection rate in areas 1-5 or play for over 10 hours.
Achieve the high score in five areas of score attack mode.
Clear Area X by defeating the standard final boss.
Defeat the standard final boss of Area X with a shot down rate of 95% or higher.
Clear Area X by triggering and defeating the alternate final boss.
Defeat the alternate final boss of Area X with a shot down rate of 95% or higher.
Clear Area X with your avatar at its highest possible evolution level.
Clear Area X without taking any damage.
Destroy over 300 Bit enemies in Area X.
Achieve the lost area high score.
Clear area 5 in play mode.
Achieve a shot down rate of 95% in areas 1-5.
Clear area 4 in play mode or travelling mode.
Clear area 3 in play mode or travelling mode.
Clear area 2 in play mode or travelling mode.
Clear area 1 in play mode or travelling mode.
Clear direct assault (trance).
Clear score attack mode 30 times.
Unlock all Rez Infinite achievements.