Error
TrinketAfterbirthUnlocked
How do you unlock Error?
Verified starting unlockSource data confirms that no unlock is required.
Gives a random trinket effect each room.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Error leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13