Ouroboros Worm
TrinketAfterbirth+Unlocked
How do you unlock Ouroboros Worm?
Verified starting unlockSource data confirms that no unlock is required.
Tears travel in a large spiral pattern and gain spectral, with a small chance to gain homing. [Repentance] Also adds +0.4 Tears.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Ouroboros Worm leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13