The Rasengan

The Rasengan
("Spiraling Sphere", Viz "Spiral Chakra Sphere") is a technique invented by Minato Namikaze after three years of development. It requires no hand seals to perform, instead relying entirely on the chakra control of the user. The Rasengan grinds into whatever it touches, causing major damage as well as significant internal injury.

The level of chakra control required is very high, and because of this the teaching of this jutsu is split into three steps. The first, emphasizing rotation, has the user learn to pop a water balloon by spinning the water inside in multiple directions with their chakra. The second step, emphasizing power, requires the same be done with a solid rubber ball, forcing the user to rely on denser amounts of chakra to permeate the air within and break it. The final step, emphasizing control, has the user form a complete Rasengan by combining what they learned in the previous two steps and making a ball shape shell around the spinning chakra to hold it in regular shape. A regular balloon is often used to train making the shell. Minato taught the Rasengan to his student Kakashi Hatake, and his former teacher Jiraiya who in turn teaches it to Naruto Uzumaki.

While most users of this jutsu are skilled enough to perform it with one hand, Naruto uses three or more hands with the aid of a shadow clone – one hand to supply chakra and the others to spin and shape it. The use of shadow clones was originally a workaround that allowed him to master this high-level technique successfully and in a very short amount of time. He continues to use them ever since, since shadow clones are almost effortless for him to create and allow him to lessen the concentration required.

The Rasengan was created as the ultimate example of chakra form manipulation. However, Minato had intended to combine it with nature manipulation, which proved to be as impossible as "looking left and right at the same time". Minato and Kakashi have both been unsuccessful in the attempt. In Part II, Naruto finally accomplishes the feat by using two shadow clones – one to manipulate form, one to manipulate nature – to infuse the Rasengan with his own wind-based chakra, and even goes on to create variants of the jutsu.

Rasenganu ii cel mai tare....Ce fata o facut Tsunade cand o vazut ca si Naruto poate face Rasengan...si o mai zis ca seamana cu Yondaime ....Toata lumea stie ca Rasenganul e mai puternic decat Chidori...S-a si dovedit asta