The Barter Box is a special item only found in Mario Party 3. It could not be bought in an item shop or won in an item game. However, players could get it by buying an Item Bag at an item shop or meeting Toad on an Item Space.
When used, the Barter Box exchanges all of the player's items with the items of another player. The Plunder Chest works in a similar way, however, the Plunder Chest only steals one item.
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