Player Die When Hit By Enemy

Do you guys know how to make player die (turn to death scene) when player hit by enemy?

You can use the OnCollisionEnter function.
For c#:

void OnCollisionEnter(Collision col){
	if(col.collider.tag == "Enemy"){
		Application.LoadLevel("DeathScene"); //name of your death scene
	}
}

You just need to create an Enemy tag and tag the enemy object as “Enemy”