Here is the full list of all 22 Keen - there are One Girl Army achievements.
See all pet's tombstones
Collect the first Orbyte
Collect 15 Orbytes
Collect 30 Orbytes
Collect 45 Orbytes
Collect all Orbytes
Defeat Cyberlich
Defeat Montgomery
Defeat Mom
Defeat Cyberlich without taking damage
Defeat Montgomery without taking damage
Defeat Mom without taking damage
Finish Shrine of Perseverance
Finish Shrine of Prowess
Finish Shrine of Fortitude
Finish Shrine of Mindfulness
Finish Shrine of Retribution
Finish Shrine of Vitality
Finish Shrine of Completeness
Finish all Shrines
Finish the Game
Find the Secret Ending