So I think it would be a good idea to make a category where you beat the game using the least amount of boxmen possible. I have already found a way to skip 1, and I'm sure there are a lot more ways to save them in later levels.

I don't think this is a good category, in my any% run only levels 11 and 10 can use fewer boxmen. Getting 3 boxmen in level 10 isn't any slower or faster than using 4, but it is more precise. Using 3 boxmen in level 11 is faster than the conventional strategy, but is slower than the fastest method by a few seconds. So, the only level that is different from any% is level 11, and the true "any%" strategy is too difficult for runs, making it basically a duplicate. It isn't worth making a category for it, and if we have low% than we should also add the trivial 100% too, right?