 Rather than Battle Points, the player is awarded with an item that is rare or expensive.The is unique to the "Black" and "White" games and serves as the games' Battle Tower, taking on the form of a subway to match the games' New York City-styled setting.In the same vein as the Battle Tower in "Diamond" and "Pearl" and the various Battle Frontiers, players earn BP and after a certain number of battles they challenge one or both of the two Subway Bosses ( in Japan), depending on what type of battles (Single, Double, or Multi) the player was competing in.