Cracked Orb

"Shards of knowledge"
Entity ID	5.100.675
Character Appearance
Item Pool	Secret Room Treasure Room Treasure Room
Collection Grid	(page 6, column 3, row 4)
Unlock Method	Defeat The Beast as Eve

Cracked Orb is a passive item added in The Binding of Isaac: Repentance.

Effects

• Upon taking damage, activates the following effects:
  • Unlocks all doors in the room.
    • It will not open already-unlocked doors, however.
  • Reveals a random unmapped room on the floor.
  • Destroys all tinted rocks and rocks with Crawl Spaces in the room.

Notes

• The effect is able to reveal the Ultra Secret Room.
• The unlocking effect is able to open the golden door to Mega Satan, doors leading to Downpour / Mines / Mausoleum, the entrance to the Mom's Heart fight in the Mausoleum and Gehenna, and the Strange Door.

Synergies

• Dog Tooth / Shiny Rock / YO LISTEN!: Makes it extremely easy to destroy tinted rocks and enter Crawl Spaces.

• Dull Razor: Essentially behaves like Dad's Key with extra effects in cleared rooms, allowing to open the aforementioned doors without taking actual damage.