Samson
ReadyComplete 2 floors in a row without taking damage.
Achievement
Defeat ??? as Samson.
In-game: “Unlocked a new item.”
Complete 2 floors in a row without taking damage.
Defeat Mom.
Reach Depths II and defeat Mom.
Sources:AchievementsWomb
Defeat Isaac 5 times.
After: The Womb
Defeat ??? as Samson.
After: Samson, The Womb, The Polaroid