Bijū Dama

The Yonbiko Imari (四尾狐威鞠, Four-Tailed Fox Menacing Ball) is Kyūbi Naruto's side special move in Super Smash Flash 2. Kyūbi Naruto transforms into his four-tailed form and fires a dark red beam through his mouth that deals heavy damage but minimal knockback. The beam cannot be destroyed by another projectile, unlike other projectiles.