Boss Room
Room
Description
Boss Rooms contain one of the many bosses, with victory granting Isaac an item from the Boss pool, hearts (depending on difficulty), and a trap door leading to the next level.
Notes
* Double Trouble Boss Rooms contain 2 bosses of the same type from the previous chapter. Defeating them only gives one item. Double Trouble Boss Rooms only appear from chapter 2 onward. ** a Double Trouble Boss Rooms can now contain 2 bosses of different types. Additionally, they can appear as early as chapter 1. * If the floor is affected by Curse of the Labyrinth, 2 separate Boss Rooms will appear in series. The trapdoor to the next floor will only appear after defeating the second boss. * When a boss is defeated, an entrance to a Devil Room or Angel Room can appear. ** A Devil Room door can't appear on the first floor, unless is used. A Devil Room door can also appear in a boss room on the first floor if the floor is spawned with the Curse of the Labyrinth, in which the Devil Room door will appear after defeating the second boss.
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