It works for me. Did you hover it over the little black spot in the top left of the classroom?
Viewing post in Advanced Education with Viktor Strobovski comments
It worked! Oh my god, this is so cool! But sadly, the „curse“ just happens once. I mean the creepy noises. I wanted to record it, while this happens, I even reset my achievments, because I thought, it might happen again, if I do that, but no. Instead, I just recorded the mini game, but without the curse. Thank you for telling me how it‘s done!