I really enjoied the game! In the "don't move" section, I initially tried doing the opposite (hence I started shaking the mouse) but nothing happened. Then I got an idea: I left the mouse and picked up my laptop, swinging it gently in front on me. It blew my mind when I saw that the numer was growing. "It's working!" I thought.
After about 5 seconds of this, I realized that my laptop can't detect movement. "It must be the webcam!" I thought then. I was sure that my cam could see something moving and hence I started waving my hand in front of the camera. That was it, I thought since the number kept growing.
At that point I felt scared because I never gave permission to this game to use my webcam. I instinctively coverd the eye of the cam with my left hand.
But the number was still growing.
At that point I casually put my free hand on the mouse.
I was still trying to figure out the situation, when I slightly moved the mouse without realizing it. The number dropped to zero.
"Oh no! I have to keep waving my hand in front of the camera until it reaches 100..." was my first thought. So I tried that again. And it was working. I was using my left hand, while the right one was still on the mouse.
That went on for some seconds, when abruptly the number went back to zero. I was confused for a moment, then I noticed that I had just moved the mouse for no other reason that I was bored with waiting for the loading to finish. And I finally understood what I was supposed to do.
Oh silly me