Greedier!
ReadyDonate 500 coins to the Greed Donation Machine.
Achievement
Earn every completion mark on Hard mode as The Forgotten.
In-game: “Unlocked a new co-player baby.”
Sources:AchievementsCompletion Marks
Donate 500 coins to the Greed Donation Machine.
Defeat Mom.
Reach Depths II and defeat Mom.
Sources:AchievementsWomb
Defeat Mom's Heart 10 times.
After: The Womb
Defeat Satan 5 times.
After: The Womb
Defeat Isaac 5 times.
After: The Womb
Defeat Hush 3 times.
After: The Womb, Blue Womb
Complete Chapter 6 (defeat ??? in the Chest or The Lamb in the Dark Room).
After: The Womb, The Polaroid
Defeat Hush.
After: The Womb, Blue Womb
Defeat The Lamb.
After: The Womb, The Negative
Defeat Mother.
After: A Secret Exit
Dig up The Forgotten with Mom's Shovel in the Dark Room (a three-part process).
After: The gate is open!, The Womb, The Negative
Defeat Mother as The Forgotten.
After: The Forgotten, A Secret Exit
Defeat Delirium as The Forgotten.
After: The Forgotten, The Womb, Blue Womb, New Area
Defeat Mega Satan as The Forgotten.
After: The Forgotten, Angels, The Womb, The Polaroid
Defeat The Lamb as The Forgotten.
After: The Forgotten, The Womb, The Negative
Defeat Ultra Greedier as The Forgotten.
After: Greedier!, The Forgotten
Complete the Boss Rush as The Forgotten.
After: The Forgotten
Defeat Ultra Greed as The Forgotten.
After: The Forgotten
Defeat Hush as The Forgotten.
After: The Forgotten, The Womb, Blue Womb
Defeat ??? as The Forgotten.
After: The Forgotten, The Womb, The Polaroid
Defeat Mom's Heart or It Lives! on Hard mode as The Forgotten.
After: The Forgotten, The Womb
Defeat Satan as The Forgotten.
After: The Forgotten, The Womb
Defeat Isaac as The Forgotten.
After: The Forgotten, The Womb
Defeat The Beast as The Forgotten.
After: The Forgotten, The Polaroid, A Strange Door
Earn every completion mark on Hard mode as The Forgotten.
After: Marrow, Slipped Rib, Pointy Rib, Jaw Bone, Brittle Bones, Divorce Papers, Hallowed Ground, Finger Bone, Dad's Ring, Book of the Dead, Bound Baby, Bone Spurs, Spirit Shackles, The Forgotten