难吃的心#639

Yuck Heart is an unlockable activated item added in The Binding of Isaac: Repentance.

• Grants a Rotten Heart upon use. If Isaac has an empty red heart container (or empty bone heart), the rotten heart will fill it. If Isaac has red hearts and/or bone hearts but no empty container, it will replace one of its red hearts. If Isaac doesn't have red or bone hearts, it has no effect.

• Book of Virtues: Creates green-glowing rotten hearts wisps on the middle ring. They spawn a Blue Fly when shooting, similar to Rotten Baby. The wisps also create a small green cloud when destroyed, which is purely cosmetic.

• Yuck Heart originates from the Antibirth mod.
• This item is a Rotten Heart variation of the Yum Heart.
• The name of the item itself is a play on the phrase "Yum or Yuck". Magdalene Unlocks Mother Unlocks The Binding of Isaac: Rebirth
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