

He later uses this defensive technique again to protect Tanktop Master from many clones of Black Sperm. First used to shield Genos from falling meteor debris. He creates an area where his fists destroy anything that enters, protecting those inside. Water Stream Encampment (流水陣, Ryūsui-jin): Performed by Bang.Garou uses Water Stream Rock Smashing Fist instinctively. However, he has managed to sharpen it through fighting, being able to fight on equal footing with his former master later in his evolved state. Initially, it is noted by Genos and stated by Superalloy Darkshine that Garou's mastery of this style is not on the level of Bang at all. Furthermore, when in crisis, the martial art allows the user's body to move on its own. The martial art is capable of deflecting small dust particles, rapid blade attacks, and even attacks of pure energy. Furthermore, this is clearly seen when Garou failed to deflect Superalloy Darkshine's tackle using his technique, which he himself commented that the hero's charge was immensely powerful. An indication of this is that after deflecting Metal Bat's Savage Tornado technique, Garou's hands were shaking due to the impact of the S-Class hero attacks. However, the martial art has a limit for redirecting force, the user cannot deflect attacks that are way too powerful compared to the strength of the user.

The user can even redirect attacks that are significantly more powerful than the user's own strength, as seen when Garou was able to deflect many of Metal Bat's blows despite taking a single one may leave him incapacitated. Users of this martial art can repel the attacks of their opponents or redirect them with twice the power. Genos describes the martial art as "the perfect blend of offense and defense". Charanko describes the martial art as "leading enemies around the nose by moving like a calm stream, only to finish them off with a punch strong enough to smash great rocks like a raging river", implying that Water Stream Rock Smashing Fist parallels real-life Tai Chi. When in use, a blue aura can be seen around the user's extremities. When used by a skilled fighter, this martial art is very effective and powerful, especially against humanoid opponents, and as long as the opponents are of a certain size that martial arts can still affect them. The scars all over his body and his spectacular skills testify to the harshness of his training and the intense battles he surmounted. After being defeated by his older brother Bomb in the past, Bang abandoned his old fighting style, the Exploding Heart Release Fist, and many years after, he invented Water Stream Rock Smashing Fist, the ultimate defensive art, while studying with his brother.
