Call me a stick-in-the-mud, but I wouldn't mind if you added an option to turn off the words of encouragement. Don't spend much time on it, of course, if it is not really easy. It is not a big deal, but when I first started I thought they actually conveyed some meaning about how well I had done on a given character. After a short while, though, when you get "Excellent" or something like that after floundering around at a character right to the brink of failing it, the encouragement loses a little credibility ;)