how to do this ?

[system]

hey guys im makeing a game and how do i do this the playe r the spher needs to go through this little circles to complte the level like pacman but he/she neds to get all the circles before he goe’s to the next level so thanks for reading.

[flaminghairball]

var sphereCount : int = 100; //how many spheres the guy needs to gobble up

private var remainingSpheres : int;

function Start(){
 remainingSpheres = sphereCount;
}

function OnTriggerEnter(col : Collider){
 if(col.gameObject.CompareTag("Sphere")) {
  Destroy(col.gameObject);
  remainingSpheres--;
  if(remainingSpheres <= 0) Application.LoadLevel(Application.loadedLevel + 1);
 }
}