Boss Battles is a mode selected on the Stadium Screen for Super Smash Bros. Brawl. The object of the mode is to defeat 10 different bosses from the Subspace Emissary without dying once. If a player dies, he/she will receive an immediate Game Over screen from classic mode and return to the Character Selection screen for Boss Battles. The first 9 bosses fought in Boss Battles are fought in a random order, but the 10th boss, which is Tabuu, is always fought last. The mode is unlocked when the player completes the Subspace Emissary. The mode has the same rest zone as All-Star Mode.