The Womb
Next upDefeat Mom.
Reach Depths II and defeat Mom.
Sources:AchievementsWomb
Achievement
Defeat Mother as Isaac.
In-game: “Complete the Corpse with Isaac.”
Sources:AchievementsMotherCorpse
Defeat Mom.
Reach Depths II and defeat Mom.
Sources:AchievementsWomb
Defeat Mom's Heart 10 times.
After: The Womb
Defeat Hush 3 times.
After: The Womb, Blue Womb
Defeat Mother as Isaac.
After: A Secret Exit