Screen.showCursor

static var showCursor : boolean

Description

Should the cursor be visible?

It is entirely possible to implement a custom cursor instead of the system one. To do this you would hide the system one, track mouse position or movement and display your own image in the needed place.

JavaScript
    // Hide the cursor
Screen.showCursor = false;

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void Example() {
Screen.showCursor = false;
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def Example():
Screen.showCursor = false