This is just responses code. The rest are written to create the menus in the file that contains this code using just .gsc file...

menuResponse()
{
  for ( ;; )
  {
     self waittill( "menuresponse", menu, response );
     println( response );

     switch( response )
     {
        case "DPAD_UP":
           level.curMenu onDPadUp();
        break;
        case "DPAD_DOWN":
           level.curMenu onDPadDown();
        break;
        case "DPAD_LEFT":
           level.curMenu onDPadLeft();
        break;
        case "DPAD_RIGHT":
           level.curMenu onDPadRight();
        break;
        case "BUTTON_A":
           level.curMenu onButtonA();
        break;
        case "BUTTON_B":
           level.curMenu onButtonB();
        break;
     }
  }
}

So, what's this thread about?