Recognize the entrance
What the doorway looks like
The barred doorway opens when you meet its health requirement.
Crossed-swords doorway


Original game-art examples, shown facing upward where relevant. Door textures and appearance can vary with the floor or item effects.
Related pickup rules
Understand the resources and chest types relevant to this room. These are useful references, not guaranteed rewards.
Find the entrance
How to enter Challenge Room
The door normally opens when total health is at least equal to your red-heart container count.
What you can find
Rewards and opportunities
The room's chests or pickups, followed by a clear reward after all three waves.
Before you commit
The risk to plan around
Opening a chest or collecting a pedestal can start the waves. Check your active item before taking the bait.
- Each cleared wave contributes an active-item charge.
- Later chapters can use boss enemies in the waves.
Reference
Repentance rules and room variants
This guide describes the room type. Exact layouts and contents can vary. The rules use Repentance references; Repentance+ can change them.


