I’ve noticed that a few levels have no runs, why is this?

Simply because no one has ran the level. The way the leaderboards are displayed on speedrun.com is that all of the levels are shown, despite if no one has done a run on a specific level.

u should run those empty categories for ez wr??

free wr lmaooooooo 4Head

Those WRs are called "Technical World Records" since nobody other than you runs that category.

I've been thinking about doing a run that no one has ever done, just because I DESPERATELY want a World Record. But it wouldn't really count!

problem: no one would freakin care