0 - The Fool?
CardRepentanceLocked
How do you unlock 0 - The Fool??
In The Binding of Isaac, 0 - The Fool? is unlocked by earning the Ultra Greedier completion mark as Tainted Lost on hard mode.
Structured pathSource-backed requirements are mapped into trackable steps.
Drops all hearts, trinkets, and pickups Isaac currently possesses on the floor, leaving Isaac at half a heart. Pickups may be dropped as items such as A Quarter and Boom!.
What unlocking 0 - The Fool? leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13