Certain-Kill Ice Spears

The user unleashes giant spikes made of ice, capable of piercing through a cottage.

Haku used this technique when he defended himself from his father and the gathered mob when they attempted to kill him because of his kekkei genkai.

Trivia

 * While this technique wasn't named in the anime, its name appears in Naruto: Ultimate Ninja and Naruto: Ultimate Ninja 2.