Yugito Nii's Jinchūriki Forms

Yugito Nii of Kumogakure is the Jinchūriki of the Two-Tailed Monster 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 monster cat powers.

While transformed Yugito is completely covered by the chakra of her Tailed Beast. In this form, her chakra takes the form of a blue-flamed two-tailed cat 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 monster cat itself will materialize. Smaller than the similar Shukaku form, the monster cat 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 monster cat's 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 accurate picture of their abilities. Another reason could possibly be that this was either the orders of the Raikage, or it is Yugito's/monster cat naturally aggressive nature.