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The fictional Special Beam Cannon is a directed energy attack in the anime Dragonball Z. It was created by Piccolo as a new attack to destroy his then arch-enemy Goku, and succeeded in killing both Goku and Goku's brother Radditz. Cell was the only other character in Dragonball Z to use this technique, as Piccolo's DNA was part of Cell's genetic makeup. It is last used in the final battle between Cell and the Z fighters.
The move is performed by touching the index and middle fingers of one hand to the forehead and charging enough energy to attack. When ready the fingers are extended forward and the attacker shouts "Special Beam Cannon" while a thin curly-cue like ray of energy is released. The main disadvantage of the attack is the time required to build up enough energy for the focused burst, a problem which apparently did not bother the Cell Juniors in the Cell games. Piccolo's maximum power rating for this attack was 1,440 on his second try.
