Kid Buu is the pure form of the Majin Buu and the most psychotic in nature, laughing hysterically and with a sinister viciousness. While this form is highly dangerous, it is also rather irrational and spontaneous, even destroying his own body in order to destroy the Earth. Although he appears smaller than any other incarnation of Buu, he is deadlier due to his full relentless evil and unpredictable nature. Free of restraint and insane in mannerism, Kid Buu is highly volatile. He retains his childish personality and is highly amused at the destruction of entire planets.Goku is able to collect energy from the Earth's inhabitants in order to unleash a powerfully devastating spirit bomb and take down Kid Buu. After his death, Kid Buu is reincarnated as the villager Uub.