Fire Release Bullet: "Blaze"

The user sends a mass of fire toward their opponent. When used through autonomous puppets, lack of hand seal weaving contributes to an impressive firing rate, though continuous firing can lead the puppets to overheat, disabling them until they have cooled down.

Trivia

 * Boruto Uzumaki could perform this technique through his Kote, Ao with a mechanism embedded in his chest.