In-game pickup line
“???”
Mechanics
What Missing Poster does
- On death, consumes the revival effect and brings Isaac back as The Lost.
- Dying on a Sacrifice Room's spikes while holding it unlocks The Lost; the revived character follows The Lost's fragile health rules.
Achievement #149
How to unlock it
Defeat The Lamb as Isaac.
Unlocking an item and finding it during a run are separate steps.
Explore more unlocksIn a run
Practical note
For the unlock, carry it into a Sacrifice Room and make sure the spikes cause the fatal hit.
Reference
Game data and sources
The trinket ID, icon, game-file tags, and short pickup line come from the extracted Repentance files. This effect explanation is an editorial summary checked against the references below. Repentance+ can differ.
