Spoilers!
What do I need to do here?
At the end it is pretended that the voice is distorted and impossible to read or hear, as the plot has another person plugged into your computer. Basically instead of three dots, it tells us the way to the easy ending (with the guy with the gun)
Dorkfishie, recently, we released an update where it will now show you which buttons to press. If in the past, you and some players had difficulties, now there will be no such difficulties. Play with pleasure!