Thanks for the feedback, I am glad you enjoyed it. We actually caught that bug in development but decided to keep it in since it was kind of funny. Like we thought that maybe the teacher would think you were studying more at the cost of obscuring your screen. But I do agree it does not really make the game fun, I think if we were to properly add it as a feature (like maybe if it didn't block as much and gave you extra time to answer) it could be interesting.