The technique involves its user moving their arms fast enough that they seemingly have eight of them, allowing them to attack and defend themselves much more efficiently.
Unlike the Four Witches Technique, the user does not actually grow eight extra arms, as the extra arms are simply an illusion created by moving their arms really fast to the point the opponent cannot tell which of the eight arms are real, as the illusionary extra arms all appear solid creating the illusion that they really have eight arms.
The technique was developed by the martial arts master King Chappa, and used in the 22nd World Martial Arts Tournament. Goku later uses the Eight-Arm Fist in retaliation against the Four Witches Technique used by Tien Shinhan during the 22nd World Martial Arts Tournament.
Tambourine developed an even stronger version the One-Hundred Arms using his superior speed to create the illusion he had 100 arms to counter King Chappa's version. Tambourine's variation was strong enough to overcome even King Chappa's Eight-Arm Fist despite Chappa having developed the original concept behind both techniques (though Chappa likely realized the mechanics behind Tambourines technique, he would have been aware that Tambourine's speed must be greater than his as he was able to produce the illusion of 100 arms instead of eight, which likely allowed Tambourine being able to more effectively counter Chappa's technique and kill him).
- One-Hundred Arms – A hundred-handed variation of King Chappa's eight-handed technique used by Tambourine.
- Amazing Spear - A rush attack variation of Demon Hand that involves rapid punching so fast with elongated arms that the user appears to have eight elongated arms. A Special Move used by Namekian Tekka and minor Namekian characters in Dragon Ball Fusions.
Video Game Appearances
In Dragon Ball Fusions, Namekian Tekka and other Namekian characters have a technique called Amazing Spear which can be seen as a variation of both Mystic Attack and either Eight-Arm or One-Hundred Fist as the technique's rapid punching produces multiple afterimages of the user's elongated arms creating the illusion they are punching the opponent with multiple elongated arms.