Basic instruction... press green flag... and it will be a few seconds before you actually hear anything.. listen closely and you should hear the words "Help me" "Murdered me" "Lost and alone" "Leave me here" "lost my memories" "help me yea help me" "walk the halls" and "please help me"
I accidentally hit the reverse button and when I started listening I heard a secret message... comment whatever you hear! I'll be sure to add what you comment to the list of things you hear!