The Dodon Ray (Dodonpa, Boom Wave) is a special attack used by Mercenary Tao and the members of the Crane School. It is never made clear whether Tao or his brother, Master Shen, invented the technique, but it is used by both. Unlike most other energy attacks, it seems to be something of a superheated beam, shown by one person in the Tien Shinhan Saga of Dragon Ball who was covered in bandages because of burns caused by the attack. It is definitely more powerful than an average Kamehameha, but unlike the Kamehameha, it doesn't seem to require much charging, but will definitely be much more powerful when doing so. Also unlike the Kamehameha, which relies more on brute force to blast an enemy away, the Dodon Ray is more concentrated in piercing through a specific point on the body.