public Game1() { graphics = new GraphicsDeviceManager(this); Content.RootDirectory = "Content"; TargetElapsedTime = TimeSpan.FromTicks(333333); intro = new Introduction(); instruct = new Instructions(); instruct2 = new Instructions2(); gameover = new GameOver(); timex = new TimeExpired(); // instantiate menus // use the whole screen graphics.IsFullScreen = true; game_engine = new GameEngine(timex, gameover); }