Rasengan

The Rasengan (螺旋丸 "Spiraling Sphere") is the standard special move of Naruto and his final form, Kyūbi Naruto in Super Smash Flash 2. Naruto and Kyūbi Naruto summon a Kage Bunshin who builds up a ball of spinning chakra in his hand and then hurls it forward in an energy ball that explodes if it hits the opponent. The attack does decent damage as it is, but if it is fully charged, Naruto and/or Kyūbi Naruto will preform the Ōdama Rasengan. Kyūbi Naruto's version of the attack is called the Yōko Rasengan (赤い螺旋丸, "Demon Fox Spiraling Sphere") in which he transforms into his Three-Tailed form. Kyūbi Naruto's Akai Rasengan is much more powerful than the regular Rasengan and has a red hue.

Trivia

 * If Kirby uses this attack, a clone of him will appear. However, this clone will not be wearing the Naruto hat.
 * In both the manga and anime, Kyūbi Naruto can use the Yōko Rasengan without the need of a Kage Bunshin, even in his One-Tailed form.
 * As of demo version 0.7, the Rasengan will be useless unless Naruto reaches an opponent, but the Yōko Rasengan will explode with or without reaching an opponent.