I’ve been running this game for a bit and currently have 4th place in any%, but I can’t find any resources to try and learn the fasted floor C route, as it’s the only thing I have left to optimize. If there are any tutorials or anything like that let me know.

Did anyone ever follow up with you? I’m also interested in this.

Nope, I’ve gotten much better since honestly just by watching the individual run world records and trying to learn those strats. I have gotten my pb down to 1:01.610 and my best possible time down to 1:01.268 after learning the world record strat for floor A.

Yeah this game isn't very popular so I doubt that there's any of that out there.