i found this line at manual, "take the alternate path back to the train, and move on", but i can end one level before alternative routs opens. So, i need run full route, like you do at your sr? My way can save a lot of time

From what I remember, in each level you normally run to the far right side, have to pick up a train ticket and run back. The path you use to get back are usually the only way to return back to the train as the game will prevent you sometimes (not all of the time) from simply walking back the way you came from. I haven't played the game in awhile and when I ran it any attempt I had of fidning shortcuts were often cut and the game forced me to run through the whole level.

Also, sometimes the alternate route back is the only way you can find the passcode. Since the slip is random you have to pick it up in order to leave.

If it works definitely give it a shot, as my run is far from optimized. I'll update it if you can show it in action!