Yes, Zetsu is a medical ninja but you don't see him do it though.
Mabey zetsu told him
no
he is not in it
Allied ninja fighting Zetsu clones
you cant, hes not playable in any of the games yet, not even ninja storm 2
Zetsu has not been fetured in ANY Naruto fighting game to date for lack of Jutsu and he hasn't relly even fought in the series, yet
So far no. btu he might be in future clash of ninja games. The farthest clash of ninja 3 got in the akatsuki is Hidan and Kakuzu. sorry :)
Yes, Ino is not primarily known as a medical ninja. She is skilled in the use of her clan's mind transfer jutsu and is a proficient sensor-type ninja, specializing in gathering information and reconnaissance. However, she does receive basic medical training as part of her overall ninja education.
Zetsu is still alive, for now.
Zetsu is not human; he is a plant-like being created by Kaguya Otsutsuki to serve her. He is composed of two halves, the white Zetsu and the black Zetsu, which represent his different personalities and abilities.
Sasuke killed Zetsu, It's highly debated that Zetsu was pulling off a Bunshin however.
If you are referring to Sakura Haruno (from Naruto) then yes, she is a medic ninja.