Monster Manual, activation summons a random familiar for the duration of the room / for the current floor. How to Jump, activation along with a movement key allows Isaac to jump over obstacles and gaps in the chosen direction. The exceptions to this are items that cost 30 cents in Angel Shops from The Stairway, and R Key, which cost 2 Red Hearts, 1 Red Heart and 2 Soul Hearts, or 3 Soul Hearts. Book of Shadows, activation grants a shield that protects Isaac from any damage for ten seconds.

This can be caused either by obtaining Chaos or exhausting the item pool, making Breakfast appear. Occasionally, items may cost Soul Hearts even if Isaac still has Red Hearts.Īny items outside of the Devil Room item pool will have a price of 1 Red Heart or 3 Soul Hearts/Black Hearts. If Isaac has no Red Heart containers, items can be bought for three Soul Hearts / Black Hearts. All items can be bought for some number of Red Heart containers (In the case of the Devil Room).

The Devil Room pool is the pool of items that can be found in the Devil Room and can be given from Hell Games.