Xbox series S is not a platform, it's S version of series X. For ex we don't have PS4 slim either
And how are we going to count this time? Calculate every second when player is on the map?
Well, if you have legacy version (1.0) then you can clip Here's tutorial
Well, for sure it sounds epic and thank you for trying to make new ideas for community. But imagine how many people would actually run this if we have only 9 people running Hater%? And plus, first run will probably be like 6 or more hours (maybe less if you're good at Hater%), which makes it even more unpopular, since not everyone has the time to do it. So, that's my point of veiw
We'll verify your run as soon as we can You're not the only one who submit runs, we have many other runs to verify
That means you have 1.2 version or Current Patch There's guide https://www.speedrun.com/cuphead/guide/g95nu , you can read main differences between versions
Can you choose Mugman or Cuphead when selecting file save?
All categories should end by completing the game. What you suggested is just NG+ but for only one isle.