Fat Buu has been noted as one of Dragon Ball's most powerful entities and the deadliest monster in the franchise. Majin Buu can fly, is inhumanly strong, and can manipulate Ki Energy like almost all fighters in DBZ. However, he does have some of his own unique abilities. He can learn any Ki Technique just simply observing another using it. This is how he learned Super Saiyan 3 Goku's Super Kamehameha.