Spiralling Serial Spheres

The user creates two Rasengan, one in each of their hands. The user can then either attack two targets at once or attack the same target with both Rasengan.

Senjutsu Version
When in Sage Mode, Naruto can use a senjutsu-enhanced version known as. It is fundamentally the same as the normal version, except stronger.

Trivia

 * Jiraiya does something similar when he teaches Naruto how to use the Rasengan; in one hand he forms a regular Rasengan, and in the other he does the balloon exercise.
 * When Naruto performs this technique in Naruto the Movie: Legend of the Stone of Gelel, he uses two different versions of the Rasengan: the Gelel Rasengan and the Demon Fox Rasengan. In this movie, he calls it