public void acquirePowerUp(PowerUp powerUp) {
        // remove it from the map
        map.removeSprite(powerUp);

        if (powerUp instanceof PowerUp.Star) {
            // do something here, like give the player points
            soundManager.play(prizeSound);
        }
        else if (powerUp instanceof PowerUp.Music) {
            // change the music
            soundManager.play(prizeSound);
            toggleDrumPlayback();
        }
        else if (powerUp instanceof PowerUp.Goal) {
            // advance to next map
            soundManager.play(prizeSound,
                new EchoFilter(2000, .7f), false);
            map = resourceManager.loadNextMap();
        }
    }