public PhoneGameOverScreen()
            : base("Game Over")
        {
            // Create the "Resume" and "Exit" buttons for the screen

            Button resumeButton = new Button("Retry");
            resumeButton.Tapped += resumeButton_Tapped;
            MenuButtons.Add(resumeButton);

            Button exitButton = new Button("Exit");
            exitButton.Tapped += exitButton_Tapped;
            MenuButtons.Add(exitButton);
        }
        public PhoneMainMenuScreen()
            : base("Main Menu")
        {
            // Create a button to start the game
            Button playButton = new Button("Play");
            playButton.Tapped += playButton_Tapped;
            MenuButtons.Add(playButton);

            // Create two buttons to toggle sound effects and music. This sample just shows one way
            // of making and using these buttons; it doesn't actually have sound effects or music
            Button levelButton = new Button("Level Select: " + GameOptions.levelSelected);
            levelButton.Tapped += levelButton_Tapped;
            MenuButtons.Add(levelButton);

            Button controlButton = new Button("Controls: Touch");
            controlButton.Tapped += controlButton_Tapped;
            MenuButtons.Add(controlButton);
        }