Name: Wind Release: Rasengan (風遁・螺旋丸, Fūton: Rasengan; English TV "Wind Style: Rasengan"; Literally meaning "Wind Release: Spiraling Sphere")
Type: S-rank, Offensive, Short range (0-5m)
User: Naruto Uzumaki
Debut (Anime):Shippūden Episode 86
Debut (Manga): Chapter 330
An original jutsu by Naruto, expanding on the original concept for the Rasengan by the Fourth Hokage's ideals: mixing one's chakra element with the Rasengan, emphasizing the combination of the highest forms of shape manipulation and element manipulation. However, this was proven to be the most difficult thing to do. Yamato even mentioned that adding one's chakra element with the Rasengan takes an incredible amount of skill, or rather natural talent or sense. Naruto mixed his wind element with the Rasengan during his training, maintaining its original stability and increasing its power, far beyond that of his ordinary Rasengan. An example of the power that element manipulation adds to the Rasengan is shown when it is tested against Kakashi's standard Rasengan. The fact that it was only partially completed and still able to easily overpower Kakashi's Rasengan and damage his hand demonstrates just how far the Rasengan has been pushed when combined with element chakra.
To create it, Naruto needs the aid of two shadow clones, and in total, five hands to create it (his hand to release and spin the chakra, one clone to form the shell to maintain the sphere shape, and the other to mix the wind-natured chakra). The concept of a completed Wind Release: Rasengan would be the rotation and power of the Rasengan, and Naruto's wind-natured chakra condensed into a stable sphere.
Later, Naruto combined this with Yamato's Water Release: Tearing Torrent to create the Typhoon Water Vortex Technique. The Wind Release: Rasengan is only a prelude to the full potential of the technique: The Wind Release: Rasenshuriken, in which the wind-natured chakra takes the form of a giant shuriken around the Rasengan and is a very powerful, dangerous technique.