Sixth Chamber

 is a passive item.

Effects

 * Coolness increases as curse increases.
 * Coolness decreases the cooldown of active items and increases the chance of items dropping upon clearing a room.
 * 2 points of coolness are granted per point of curse.
 * It prevents the usual curse penalty towards getting a room clearing reward.
 * Increases curse by 2.
 * Due to the nature of the item, effectively gives 4 coolness.

Bugs

 * The coolness that Sixth Chamber provides does not work as intended: it only affects the cooldown of active items, and provides none of the other benefits that it usually does.

Trivia

 * If the player has Heck Blaster, it causes an unknown effect.
 * The appearance of the item is a reference to the number 666, identified as "the number of the beast" in the Book of Revelations of the Christian Bible and widely associated with evil and the devil.
 * The item is also a reference to the sixth chamber within the game, Bullet Hell.
 * Defeating the Paradox Lich from the Gunslinger's past counts as a Jammed boss for the purpose of unlocking this item.
 * If you defeat the Advanced Dragun that isn't jammed but the first stage of the Dragun is jammed, you will not unlock this item.
 * This item has a chance to be sold by Cursula, as buying her stuff increases curse.