Demon Fox Rasengan


 * Debut (Anime): Naruto Episode 134
 * Debut (Manga): Chapter 232

Naruto forms the Rasengan while in his one-tailed transformation. He uses the Nine-Tailed Demon Fox's chakra shield as a shell to help in its formation, taking the place of his usual shadow clones. In the anime, this Rasengan is purple instead of the usual blue. In the second movie and the various video games, the Rasengan is red. It is also more powerful than the usual, due to the demon fox's chakra.