//Component Colour change to red
GetComponent<Renderer>().material.color = Color.red;

//Set a component to enabled or disabled depending on its current state
myComponent.enabled = !myComponent.enabled;

//Transform in the Update() function 
//Vector3.forward is a shortcut for 0.001
//moveSpeed is a float variable
transform.Translate(Vector3.forward * moveSpeed * Time.deltaTime);
//To move down use
transform.Translate(-Vector3.forward * moveSpeed * Time.deltaTime);

//Left Rotate
transform.Rotate(Vector3.up, -turnSpeed * Time.deltaTime);
//Right Rotate
transform.Rotate(Vector3.up, turnSpeed * Time.deltaTime);

//Look at a target Transform
transform.LookAt(target);

//Destroy with 10 second delay
Destroy(gameObject, 10.0f);