usingSystem.Collections;usingSystem.Collections.Generic;usingUnityEngine;usingUnityEngine.EventSystems;usingUnityEngine.SceneManagement;publicclassTitleScreen:MonoBehaviour{voidUpdate(){// quit application when back button is clickedif(Input.GetKeyDown(KeyCode.Escape))Application.Quit();}publicvoidToLevel1(){SceneManager.LoadScene("Tutorial");}publicvoidQuit(){Application.Quit();}}