Majin Buu learns the technique after seeing Goku perform it during the Majin Buu Saga. Cell is also capable of using it due to the cells of Kamehameha users within his design. After the Turtle School students learn the attack, they teach it to others, and the attack becomes a very popular one to use during battle. Tien Shinhan also easily copied it during the tournament. It was also learned by Krillin and Yamcha, who use it during the 22nd World Martial Arts Tournament against Chiaotzu and Tien Shinhan respectively. To Roshi's surprise, Goku successfully performs the technique on his first attempt, although it is only strong enough to destroy the car that Yamcha gave to Bulma earlier. Goku learns it after witnessing Master Roshi unleashing the blast to extinguish the flames at Ox-King's home on Fire Mountain. By drawing his latent ki into the palms of his hands, Roshi is able to expel an explosive beam of ki energy. The Kamehameha was invented by Master Roshi by practicing for fifty years spanning pre- Dragon Ball. Goku using the Kamehameha while training in the Hyperbolic Time Chamber Master Roshi's Kamehameha is called the Original Kamehameha in the Budokai Tenkaichi series, and requires some time to charge. In most variants, the user utters the word 'Ka-me-ha-me-HA!!!' as he/she charges and releases the attack. The blast can also be used, generally under extenuating circumstances, with just one arm or even the feet. The hands are then thrust forward to shoot out a streaming, powerful beam of energy. The Kamehameha is formed when cupped hands are drawn to the user's side and ki is concentrated into a single point (between their cupped hands). 'the very lonely one' or 'the one set apart' in Hawaiian language). She told Akira that it would be easy to remember the name of the attack if he used the name of the cultural Hawaiian king named Kamehameha (lit. After much contemplation, he could not decide on a name for his 'Kame' attack, so he asked his wife (Nachi Mikami), who came up with the name. Akira Toriyama actually tried a number of poses when he was alone in order to decide the best pose for the Kamehameha.

Dragon ball kami