Bobobo-bo Bo-bobo – Episode 49
Source 1 :
49 “The Battle of Brains Begins!”
“Extremely Difficult? IQ Battle Begins! Giga, Come and Get It~!!” (超難解？IQãƒÂトル開始ï¼Âギガよã€Âã‹ã‹ã£ã¦ã“ã„や～ï¼Â!) March 13, 2005