How to deal with BackKeypressed()?

Questions & Answers
1

My game need to back mai menu when user push the wp8 phone’s BACK key, How to write my BackKeypressed() in unity3d or VS2012?

2

Like on Android devices, the back button is bound to the Escape key. So you can query the Escape key in an update and act accordingly
eg.

void Update()
{
    if(   Input.GetKeyDown(KeyCode.Escape) ) HandleBackbutton();
    ...
}

source - link text
user - spacefrog

3

void Update () {
if (Input.GetKey (KeyCode.Escape)) {

               Application.Quit();
               or something else
	}

}