My understanding is that Original mode sufficiently replicates the original game that it can be used, but I've never played it so that's not definitive.
I don't see any reason for banning the Saturn version (Original Mode). Just submit a run, if you have one. Someone will look at it then.
But I have no idea where runs with the spindash would go.
can you add plug and play as a category, because although it's a awful way to play the game, the Atgames systems still exist and are classified as a plug in and play consoles. You also forgot to add gba because of sonic genesis.
In regards to the plug-and-plays... wouldn't that fall under emulated Genesis anyways, since they're pretty much glorified (and often badly at that) emulators? Either way, better off at that point to either run on Kega Fusion or find a compilation disc for a newer game console/PC.
