User blog comment:FazbearFreak/How to get 5000 points in UCN with minimal effort/@comment-26587726-20180810184245/@comment-27812664-20180810190556

I tried adding Afton, but it seemed like having more than one door closed would drain too much power to keep it closed through the entire night. Afton's mainly chance-based, which is something I wanted to avoid while developing this strategy.

As for Scrap Baby, I'm not 100% sure about this, but I think she'll kill you once the screen goes completely dark.