Rasengan, Narutopedia

The Rasengan is a jutsu that takes form as a spinning ball of chakra, invented by Minato Namikaze. Minato came up with the idea for this technique after seeing a Tailed Beast Ball being used. Because his lover, Kushina Uzumaki, was a jinchūriki, she would inevitably be deployed to fight opponents who would use Tailed Beast Balls against her. Minato therefore wanted to develop a technique that Kushina could use to match against those opponents, which also worked with her chakra volume as a jinchū

Title: Tenseigan Chakra Mode, Narutopedia, Fandom

Naruto RPG 2: Chidori vs. Rasengan, Narutopedia

Lingering Snow, Narutopedia, Fandom

Naruto rasengan, Wiki

Runt Ball Rasengan, Narutopedia

In Naruto, is Ashura the actual creator of the “Rasengan”? - Quora

Masashi Kishimoto creator of Naruto

Planetary Rasengan Narutopedia+BreezeWiki

Supreme Ultimate Rasengan, Narutopedia

Who can perform Rasengan in Naruto? - Quora

Naruto's Rasengan vs. Sasuke's Chidori, Naruto, Set 5