Flying Thunder God Technique

The Flying Thunder God Technique is a technique which allows the user to transport themselves to a given location in the blink of an eye. This technique was the reason that Minato Namikaze gained the moniker of.

Tobirama Senju
Tobirama can seemingly perform this technique without the limitation of requiring a special seal at the desired destination. By combining the technique with his kenjutsu skills, he could deliver precise attacks at blinding speeds.

Minato Namikaze
To activate this technique, Minato uses a special seal or to mark an intended destination. After this is done, he can enter a dimensional void at will that instantaneously transports him to the location of the seal. Minato applied the formula in advance to his special kunai, which he would scatter all over the battlefield when a fight commenced, so that they could be teleported to at any time. He can also apply the mark through physical contact, to areas such as his opponent or some other surrounding feature.

The technique is fast enough to even allow Minato to escape being warped away, despite already being partially sucked in. Minato can also use this technique to teleport other objects, such as when he used it to teleport Kurama out of Konohagakure, though the size of the object determines the amount of chakra required. It is because of this technique that Konohagakure came out victorious in a battle against Iwagakure during the Third Shinobi World War, despite already running short on manpower in the front lines. After having his subordinates toss marked kunai randomly into the enemy ranks, Minato used the technique to appear within their ranks, using the great speed of this technique to seemingly appear to be in several places at once and wipe out entire squadrons one by one in moments before they could even react. This, combined with Minato's immense natural speed and reflexes makes this technique extremely deadly and according to A made Minato the fastest ninja to ever live.

Hokage Guard Platoon
Minato also passed the technique on to his special guards, Genma Shiranui, Raidō Namiashi and another unknown shinobi. However, all three of them are needed to perform the technique. To do so, they form a circle with one another by performing the seal of confrontation with each other with their thumbs, middle and index fingers touching. This allows them to transport anything within the confines of the ring. As they are now the guards of the Fifth Hokage, Tsunade has been marked with the technique formula.

Trivia

 * Minato also incorporated the formula into his wife's seal, allowing him to come to her aid at any time.
 * Although it is often compared with the Body Flicker Technique, the speed and range of this technique are much greater. In principle, this technique is instead similar to the Summoning Technique, as it revolves around the manipulation of the space–time continuum rather than accelerated movement, but instead of bringing something to the user, it sends them somewhere.
 * The name Hiraishin is also the phonic of the Japanese word 避雷針, which means "lightning rod". This may suggest the reasoning as to why the technique is restricted towards a seal, because lightning is attracted to lightning rods.
 * The technique can create smoke similar to a Summoning Technique, but that is not always the case.