PlayerPrefs Error?

This is my attempt:

Code (JavaScript):

1. function Update () {
2.     if(transform.position.y < -2.6){
3.         GameOver();
4.     }
5. }
6.  
7. function GameOver(){
8.     //save highscore
9.     if(currentScore > PlayerPrefs.GetInt("Score"))
10.     {
11.         PlayerPrefs.SetInt("Score", currentScore);
12.     }
13.     Application.LoadLevel("Game Over");
14. }

I keep receiving an error that states:
Assets/GameOver.js(11,37): BCE0005: Unknown identifier: 'currentScore'.

What am I doing wrong?

I built the PlayerPrefs based on my score script:

Code (JavaScript):

1. #pragma strict
2. static var currentScore : int = 0;
3.  
4. var offsetY : float = 40;
5. var sizeX : float = 200;
6. var sizeY : float = 20;
7. function Awake()
8. {
9.       currentScore = 0;
10. }
11. function OnGUI () {
12.     GUI.color = Color.yellow;
13.     GUI.Box (new Rect (Screen.width/2-sizeX/2, offsetY, sizeX, sizeY), "" + currentScore);
14. }

Code (JavaScript):

1.        GameMaster.currentScore += 1;
2.  

 

You need to use GameMaster.currentScore

Code (csharp):

1.  
2. if (GameMaster.currentScore > PlayerPrefs.GetInt ("Score")) {
3.     PlayerPrefs.SetInt ("Score", GameMaster.currentScore);
4. }
5.  

 

The errors have gone, thank you.

Will I need to create a GUI so that the best score will show at the Game Over Scene?

 

It would be quite difficult to show information without a GUI.

 

I figured.

I took the PlayerPref out of the Game Over function, and created a separate script using function awake. Do I just rap the entire function awake within a OnGUI or would it be much easier to use unity's GUItext?