Wind Release: Air Bullets

This technique shoots multiple bullets of air at the victim with intense speed. The bullets also have great power, enough to subdue a whole group of shinobi.

Senkai
Senkai has also shown the ability to synchonize these air bullets with kunais, which will increase the cutting power of the technique to incredible proportion, such as easily tearing holes in a rock formation. Furthermore, he can also manipulate the wind bullet from a distance and can increase its density, causing the kunai to disintegrate into hundreds of microscopic shrapnel, which will shoot out of the wind bullet and have the capability to pierce through human skin.

Takema Clan Variant
The Takema clan only recently discovered this technique and have quickly made it their own. My increasing the pressure inside the bullet, they are capable of increasing its piercing power several times over. Furthermore, by applying shape transformation to the resultant projectile, they are cpable of shaping it into many shapes, most of which are used in conjunction with their skill in shurikenjutsu, for example, kunai, shuriken or senbon. An interesting side effect of this justu, is that the smaller the constructs are, the higher their piercing power. This stems from the fact that the way they iniate this jutsu deals with size and pressure seperately. They are able to vary the size then add pressure. In this manner, due to the compressible nature of air, they are capable of increasing the pressure, and therefore the cutting power of this technique infinately, "evolving" it to deal with any defence. The more powerful clan members have been said to create constructs so sharp, even the "impenetrable" defence of the Uchiha clan guardian is unable to stop them.