Rasengan

Rasengan

Naruto using the Rasengan.

Created by the Fourth Hokage and taught to him by Jiraiya, the Rasengan is Naruto's second and strongest signature technique. While the Rasengan is a one-handed technique, Naruto required the use of two to form it due to his poor chakra control, thus using a clone to form the "shell" of the sphere. Despite this, Naruto has used the Rasengan effectively in almost every one of his fights after mastering it. The Rasengan holds an advantage over its counterpart, the Chidori, in only requiring chakra control to form, while the Chidori uses so much chakra that it can only be used a few times a day. Naruto has mastered the Rasengan to a degree that he can do it almost instantaneously.^[108] After obtaining Tailed Beast Mode Naruto is able to perform the Rasengan without a clone,^[109] as well as being able to form and wield a Rasenshuriken in each hand.^[110]

Naruto forming a Tailed Beast Rasengan.

The Rasengan, like the Shadow Clone Technique, would be the base of several original techniques developed by Naruto, such as the Big Ball Rasengan, a larger and more powerful version of the Rasengan, he then later learned how to use the Ultra-Big Ball Rasengan without the use of natural energy or Kurama's chakra.^[111] He has also created the Wind Release: Rasengan and Wind Release: Rasenshuriken after his wind training, and after his senjutsu training, the Sage Art: Big Ball Rasengan, Sage Technique: Spiralling Serial Spheres andSage Art: Ultra-Big Ball Rasengan. He has also demonstrated the combined use of his shadow clones and the Rasengan, resulting in the Big Ball Spiralling Serial Zone Spheres, in which Naruto and his shadow clones launch a barrage of Big Ball Rasengan that are strong enough to even counter Madara'smassive advancing forest.^[112] He could even use a larger scale version in Sage Mode known as the Sage Art: Many Ultra-Big Ball Spiralling Serial Spheres, which deals immense damage that could even stun Kurama. Because of the risk of using the Shadow Clone Technique while in Nine-Tails Chakra Mode, Naruto instead uses the shroud's chakra arms to help him create new Rasengan variants, such as the Spiralling Strife Spheres, the Spiralling Absorption Sphere and the Planetary Rasengan for example. He later tries to complete a technique related to the Tailed Beast Ball: the Tailed Beast Rasengan.^[113] However, Naruto later develops a more effective version of this technique: the Super Mini-Tailed Beast Ball, which is basically a miniature Tailed Beast Ball that he's able to control with the help of a shadow clone.^[114]

Due to the unique nature of the Rasengan in Naruto movies, Naruto creates a new type of Rasengan, often facilitated by a character in the movie, or a unique property present in the movie.