Yugito Nii's Jinchūriki Forms

Yugito Nii is a kunoichi from Kumogakure, and the Jinchūriki of the Two-Tailed Demon Cat. She seems to be in great control of her Tailed Beast as she can induce the transformation herself.

Two-Tailed Transformation
After luring Akatsuki members Hidan and Kakuzu to a secluded area, Yugito fought the duo by tapping into the demon cat's powers.

While transformed Yugito is completely covered by the chakra of her Tailed Beast. In this form, her chakra takes the form of a Nekomata two-tailed cat, shaped by a fiery blue chakra, with no pupils in her eyes.

Yugito maintains a high level of control over her Jinchūriki form. With chakra emanating from out of her, she will hunch over and the Nibi demon itself will materialize. Smaller than the similar Shukaku form, the Two-Tails still proves a threat. In this form Yugito is able to emit fiery spectral blasts from the cat's mouth. These blasts are very destructive and when coupled with the Two-Tails strength, the surrounding area can be reduced to rubble. However there is speculation of to what degree of control she has, considering she blew up all the escape routes to capture Hidan and Kakuzu, without an acccurate picture of ther abilities. Another reason could possibly be that this was either the orders of the Raikage or it is Yugitos/Nibi's naturally aggressive nature.