Sage Technique: Spiralling Serial Spheres


 * Name:
 * Type: Senjutsu, Offensive, Short Range (0~5m)
 * User: Naruto Uzumaki
 * Debut (Manga): Chapter 432

The Rasenrengan, is simply two Rasengan used simultaneously. Once created, both Rasengan's are used at the same time with greater force than a single, regular Rasengan. It is different than Twin Rasengan, because Twin Rasengan uses one Rasengan at a time to attack, while this technique uses both Rasengan at the same time. This, of course, requires quite a bit of chakra, likely double the amount used in a single Rasengan, which implies it might require Hermit Mode. As a result of using both this technique and the Wind Release: Rasenshuriken, Naruto used up all his senjutsu chakra, forcing him out of Hermit Mode.

Naruto first used this technique against Pain's Animal Path when both were in Gamabunta's mouth, then uses it as smokescreen and later on against Pain's Naraka Path.