The Battle of Brains Begins! (Japanese: 超難解?IQバトル開始!ギガよ、かかってこいや〜!! Extremely Difficult? IQ Battle Begins! Giga, Come and Get It~!!) is the fourty-ninth episode of the Bobobo-bo Bo-bobo anime. It was first broadcast in Japan on March 13, 2005 and in the United States on November 4, 2006.