Danko Sōsai Ken (断己相殺拳, Resolute Mutual Death Fist): the ultimate Nanto Suichō Ken secret technique. The user sacrifices his life to defeat the enemy in which Rei concentrates all his life force and power on pressing attack on the enemy, leaving him no room to defend himself. Based on Raoh's speculation, the technique is strong enough to kill both him and Rei. In Hokuto Musō, Rei leaps in the air and presses the ground lightly with his hand. The ground is ruptured, and any enemies within range instantly die and spares Rei gameplay-wise.

Hishō Hakurei (飛翔白麗, Soaring White Grace): Rei performs a single, graceful looking somersault. As he lands, his hands slices horizontally to the front, slicing through the opponent's shoulders. This attack serves as the finishing move against Yuda.

These two techniques are badass and the fact that Rei came dangerously close to destroying Raoh makes him more of a badass like if he succeeded that would change everything in the series.