(Warning: if you are photosensitive, do not click on the link to the game. It uses quickly flashing colors and may be a trigger for you.)
Assuming you have a camera connected to your device and your browser detects it, the goal of this experiment is to navigate, with moving your head, the cursor (bubble) to the center of the screen and to remain there for as long as you can. If you move away at all, the time restarts. However, as long as you remain ‘body silent,’ the counter will increase in milliseconds.
How long can you keep the cursor centered and your head still?