Really slow, lag at beginning of levels, levels never get harder. Is the '+' or the '-' easy/hard? Why can't I go back and redo a level for a better score? Why do they all have 4 levels, if this never changes why bother posting it as some sort of important information?
Use the onscreen keyboard for the lights on (my keyboard only has two lights on it). To turn on the onscreen keyboard (start - run -> write "osk"). Click lock=Caps lock, nlk=num lock, and slk=?. Ignore whether they were on or off, just change them to whatever setting they weren't. If this doesn't work click them in different orders until the "key" is revealed.
-Advice modified from 'cece it'