Mecanim - making a character turn his torso towards mouse

Questions & Answers
1

For a top-down shooter style control scheme is it possible to do this with the free version of mecanim?

2

It is definitely possible via animation blending trees with parameters that specify the character direction, for example in degrees from -180 to +180 where 0 degrees means the character facing the upper edge of the screen.

3

Try this one. Worked for me.

http://answers.unity3d.com/questions/509139/mecanim-legs-orientation.html