滑肋骨#542

Slipped Rib is an unlockable passive item added in The Binding of Isaac: Afterbirth † (Booster Pack #5).

• This item is a reference to slipping rib syndrome.
• This item may be a reference to the Adam and Eve story in Genesis, where God takes a rib from Adam's body to create Eve.
• This item may be a reference to the NES game Castlevania 2: Simon's Quest, where Dracula's rib is an item used as a shield that protects from projectiles.
• This item is Edmund's favorite Booster Pack item according to _Kilburn.