The title is a little confusing, so I will explain my suggestion.
I like to use skritter as a way to test myself to see if I know a character or not. Now let's say I kind of forgot part of character, just the end of it. Skritter won't pass onto the next character or show the red/green lighting until I am completely done writing the character: hence I know I am not done with it. If this were to be an exam, I would have written the character uncompleted.
So my suggestion is to add a very simple answer submission mode. One would write the character however he think it's written, and then submit it where it would show if he got it right or not.
The way it currently is makes it too "guided" (imo) and doesn't force you enough to recall the strokes. For example I would try out a stroke and skritter thinks I wrote another, and puts down the correct -- but unwanted -- stroke.
If I am not clear let me know I will explain again!