This technique allows the user to manipulate their tendrils and then sends them underground. They then appear underneath their target piercing them multiple times.
Like the rest of Kakuzu's techniques, the name of this techniques comes from the mecha anime "Mobile Suit Gundam" (機動戦士ガンダム, Kidō Senshi Gandamu). The name Biguro was taken from the Mobile Suit MA-05 "Bigro" (ビグロ, Biguro). The name was altered slightly and given kanji to create the name of this technique.