The Sage Technique: Spiralling Serial Spheres is simply two Rasengan used simultaneously. Senjutsu chakra is added to the technique, which greatly enhances the strength of the attack.
Trivia
- In Naruto Shippūden: Ultimate Ninja Storm 2 and Naruto Shippūden: Ultimate Ninja Impact, it becomes Sage Mode Naruto's standard technique.
See Also
- Twin Rasengan
- Double Rapid Rasengan