If I understand it correctly, you have already pass the first time in the vent ? If yes, the next screen is exactly the same map, except you have to run asap to the entry to escape death. Try to remember the path you take and do it in the opposite way. Maybe if your game is not totally buggy it will work. Im consious how it sound but with a bit of luck and enough try it could work.But I don't even know where I got in! the map is all dark you can't see anything it gets totally confusing, it was already the twenty-second time and without success! Yes, always dash was enabled!