The Womb
Next upDefeat Mom.
Reach Depths II and defeat Mom.
Sources:AchievementsWomb
Achievement
Complete Demo Man (challenge #9).
In-game: “Unlocked a new item.”
Sources:AchievementsChallengesDemo Man
Defeat Mom.
Reach Depths II and defeat Mom.
Sources:AchievementsWomb
Defeat Mom's Heart 9 times.
After: The Womb
Complete Demo Man (challenge #9).
After: Demo Man