It said I completed the demo in 1 loop, in 22 minutes. I can't click 'loop' only 'restart' (actually neither option works). I never opened the 10 minute door though; from the description I assumed I had to go out and get other supplies before I "restarted the power" and that it was the slower option.
A couple people have reported the buttons on "game complete" screen not working, so I'll definitely be looking at those at some point. The 10 minute door is mostly there to teach a lesson that you shouldn't just blindly try to do every action, but I'll likely make it a handy shortcut later in the story.