So as some of you already know, I run a retro game store. I have purchased about a dozen Xbox Ones by now, and I keep coming upon the same problem. I won't buy a system that I have not thoroughly tested. That being said, Installs are atrocious.... Many customers bring in their systems already formatted as well; making testing a long process.... I would like for the community's assistance in this area.... What are the fastest installing games for the Xbox One that I can use as a tester? Which of these games can easily test all of the buttons on the controller? I'd like to come up with a reasonably quick tester to have permanently set aside in my store for use.... Thanks for any incite guys~!