Carrion Queen

Carrion Queen is a boss that can appear in.

Phase 1
Carrion Queen is only vulnerable in the flesh segment of her behind. She moves randomly around the room in cardinal directions and can perform the following attacks:
 * Carrion Queen charges at Isaac whenever he lines up with one of her cardinal directions.
 * Like Chub, Carrion Queen eats any Bombs dropped in her path; stunning her for a moment before dealing considerable damage.
 * Spawns a damaging Red Poop up to a maximum of 5.
 * She damages and destroys Red Poop she charges into.

Phase 2
Carrion Queen deals a whole heart of contact damage in both phases.
 * When below half health, Carrion Queen begins to move diagonally, similar to The Hollow, but without flight. She no longer performs her previous attacks from Phase 1.
 * She will bounce off of obstacles and her own Red Poop damaging it and destroying it in the process.

Champion Versions

 * Pink: Carrion Queen moves slightly quicker, has 100% more HP (700) and spawns small Hearts instead of Red Poop. The hearts have 28 HP and killing them deals 40 damage to Carrion Queen. She does not bounce diagonally around the room when below half health.

Trivia

 * Carrion Queen was added in the Wrath of the Lamb DLC for the original The Binding of Isaac.
 * She is the posthumous version of Chub.
 * She is the boss version of the Carrion Princesses.
 * Carrion is another word for the rotting flesh of a dead animal, often eaten by scavengers like vultures, coyotes, maggots, etc. [1]
 * The name "Carrion Queen" could be inspired by a level of Super Meat Boy under the name "King Carrion".
 * Despite the Carrion Queen being an invertebrate, or an animal lacking a skeleton of bones, she has a skeletal appearance.
 * During the death animation, the Carrion Queen's head doesn't burst into blood. Instead, it flattens and instantly disappears.
 * In the Bestiary, she is referred to as "The Carrion Queen".