Rasengan

Rasengan is a jutsu that Minato Namikaze created after three years of observing the Tailed Beast Ball Jutsu Kyuubi belongs. This jutsu is a spinning ball made ​​of chakra in the user's hand. Rasengan is introduced in the series when Jiraiya teachers teach Minato Namikaze Naruto Uzumaki, Minato's son. Because it is difficult jutsu, Jiraiya taught it to Naruto in three stages: rotate the chakra, giving enough power, and forming the chakra into a compressed spherical shape. During Part II, Naruto, Rasengan introduced new variants. Naruto and Jiraiya can make rasengan larger than the original. Naruto also managed to add wind element chakra to the Rasengan and creates a new version, Rasenshuriken.