Bakudantsuki

is a technique of Kensei Muguruma's Zanpakutō, Tachikaze.

Description
Kensei infuses Tachikaze with spiritual energy, causing it to glow, until it takes the shape of a glowing orb, and fires it as an energy blast with extreme force. This blast is quite devastating, as it blew off the arm of Ichigo's Hollow form, and, in another case, the heads of several Gillian-class Menos. He later uses it to destroy a Menos Grande simply by using the ability while impaling the mask of the Hollow with the blade of Tachikaze. The effect is the same, totally blowing up the head of the Hollow.