*spoliler alert* the girl stop but if you press the tab again, the girl should resume moving but if you tab again, she will stop again. Basically you are letting her go was the point. See if that works and let me know if it still does not - fkkcloud@gmail.com
It didn't work, However, I pressed tab and space, The girl doesn't move at all, and my friend who uses a different macOS computer has the same issue, What is the "Tab" button you mentioned, tab or space or some other button.
