Continuous Kamehameha
From Dragon Ball Encyclopedia
Directory: Techniques → Offensive techniques → Ki → Energy wave barrages
The Continuous Kamehameha (連続 かめはめ波, Renzoku Kamehameha; Literally meaning "Continuous Turtle Destructive Wave") is a rapid-fire version of the Kamehameha and used by Son Goku. Goku fires the Kamehameha many times at a very rapid rate from both hands, inflicting a great deal of damage.
History
Dragon Ball Z
Goku used a one-handed version of this attack in his battle against Freeza on Planet Namek. He also used it against Super Boo (Gotenks absorbed) and against Kid Boo in the final battle as a Super Saiyan 3.
Video games
Goku has a special attack that is called the Continuous Kamehameha in Dragon Ball Z: Budokai 2, but it starts with a rush and it is yellow-colored instead of blue as in the anime.