У вашего броузера проблема в совместимости с HTML5
It's like playing Red Light, Green Light, only with death!
She appears to be blind like the other monsters, and does not react to distractions. In fact, this one is completely stationary unless disturbed. The only way it can detect you is through constant movement, staying crouched and stopping whenever she lights up appears to be the best way to sneak past.