Shigan

Shigan is one of the six techniques of "Rokushiki".

Overview
The Shigan is a close-quarter combat technique, in which the user pushes their finger into a certain target at a very high speed, leaving a wound similar to a bullet wound.

It is a very useful technique that can connect rapidly and accurately, which works well with the Rokushiki users' impressive speed and agile techniques. However it's never been used to counter or deflect another powerful attack in any fights, which is probably because the user could easily break his finger instead of just blocking it with Tekkai. The Shigan's shape is derived from the shape of the finger, hence the hit of Shigan will have more of an impact on Luffy's rubber body (which normally reflects bullets) if it is sharper than the round bullet and resembles more modern bullets.

A sharper point is added to this technique when Lucci, Jabra and Dalmatian morph into their half-beast forms, enabling the use of their claws to fire the Shigan like an actual modern bullet, instead of simply jabbing their opponent. So far, it seems each CP9 member has their own version of Shigan, aside from Blueno, Nero, and Spandam, the latter of the two not even knowing how to use the technique.

Variations

 * Shigan "Oren" - Used by Lucci. This attack is simply a rapid-fire version of the normal Shigan technique that hits the enemy multiple times. In the anime, he is also seen using this technique to kill the captain of a crew who raided the kingdom 15 years ago, but did not name it as "Oren".


 * Tobu Shigan - First used by Stussy. A projectile version of Shigan that fires a sharp compressed air shockwaves from the finger thrust enabling the user to injure someone without getting close. It seems to be the Shigan version of the Flying Slash Attack.


 * Tobu Shigan "Bachi" - Used by Lucci. Similar to "Rankyaku", this technique is able to pierce Luffy's rubber body. Unlike all other versions, this type of Shigan is launched by flicking instead of jabbing, though in the anime, Lucci and Jabra demonstrated a variant that involves jabbing.
 * Shigan "Madara" - Used by Lucci. Appears as Oren, but is performed with both hands instead of one and in half-leopard form (meaning that his fingers are clawed), this makes for the ultimate Shigan barrage.
 * Bigan- Used by Kaku, in his half-giraffe form. In this attack, Kaku uses his nose instead of his finger to perform the attack. As his nose is much larger in diameter than a finger, the hole it creates is also much larger than that of a normal Shigan, as well as being completely square.
 * Kyoku Bigan "Kirimanjaro" - Used by Kaku in half-giraffe form. After using Kirin Hodai to completely retract his neck into his body, he can fire it out like a cannon, making his Bigan much stronger.
 * Jusshigan - Used by Bonham and Jabra in his half-wolf form. In this attack, the user puts both of his hands together and performs Shigan with all ten of his fingers at once, greatly damaging the opponent.
 * Gekko Jusshigan - A combination of Jusshigan and Geppo. After using Geppo to get himself into the air and subsequently avoid his foe's attack, Jabra finally uses it to launch himself towards his airborne target in a vertical drop. The added momentum and the vulnerable target makes the following Jusshigan more effective, and harder to avoid.
 * Shigan Cue - Used by Kumadori. In this attack, Kumadori uses his blunt staff in the same way a finger is normally used in Shigan. The Q in the name is a reference to a pool cue, which is held in the same manner that Kumadori wields his staff.
 * Shishi Shigan - Used by Kumadori. Rather than using his own fingers, Kumadori shapes his hair into the form of hands and repeatedly uses the fingers of said hands to rapidly jab the opponent, similar to Lucci's Shigan "Madara", but less powerful.
 * Jugon - Used by Fukuro, this is a very strong punch which is done at the same speed as Shigan, making it even more powerful.
 * Jugon Ogi: "Fukuro Dataki" - A rapid-fire version of Jugon, in which Fukuro unleashes a flurry of punches at the enemy while using Soru to move around him, in order to strike from all directions. In the anime, Fukuro creates after images of himself that circle the opponent to strike them.


 * Shinaru Shigan "Whip" - Used by Kalifa. In this attack, Kalifa pulls back her arm as if to use a normal Shigan attack, then whips her arm out at the opponent at high speed, causing her arm to appear as if it is bending like a whip would, and hits the enemy with her finger. The whip aspect of this variation results in the added effect of the target being thrown forcibly backwards.
 * Tobu Shigan "Mitsubachi" - Used by Lucci. Lucci fires the Tobu Shigan: Bachi three times consecutively.
 * Tobu Shigan "Hibachi" - Used by Lucci. Same as Tobu Shigan: Bachi, except that the projectile is a fireball, possibly created through friction, that burns the victim upon impact.
 * Shigan "Five" - Used by Shuzo, he does Shigan with all five fingers on one hand.
 * Shigan "Ten" - Used by Shuzo, he does Shigan with all ten fingers on both hands similar to Jabra's Jusshigan.
 * Shigan "Sentoso" - An upward version of Shigan: Oren used by Lucci in Gigant Battle 2, as a followup to his Shoukoushou attack.

Trivia

 * The Shigan technique is most likely a reference to the Shaolin Monks' fictional technique: Shaolin Finger Jab.