I think we can work something out, but before we can, I should ask, are there any possible individual levels?

If not, then my solution is a compromise, because the community have had a couple of heated discussions on the layout of the series page, due to the load of HP1 and HP2 leaderboards, and so instead of making a whole new leaderboard, I was thinking of putting the three versions into the Level Leaderboards layout, as they can then be separate, but in one 'page' so as not to add more unnecessary things to the series page. There can be more than one category with the Level Leaderboard, but they'd be shared across the versions, but that hopefully shouldn't matter.

Oh, and, tbh, because all the other versions (PS1, PC, GBA, GBC) are all completely different in terms of mechanics and pretty much everything else but audio tracks and base of the storyline (they go about the storyline differently in some details), we just assumed, as these three versions had the same mechanics, gameplay, visuals, storyline, etc., that they would just be in the same leaderboards. A reason which is also why the PS2 version shouldn't deserve its own page, but the differences it still has means it at least deserves separation by using the Level Leaderboard format.