So far only the NES version (aka. Hydlide Special) has been run on here, but what about the other releases of the game? The original PC-98 version released on Switch last month, for example and has entirely different dungeon maps for example.

Not sure if it's a fair comparison if it's all in one leaderboard but also not sure if others are also interested in running the pre-NES/FC versions for PC-98, MSX2 and so forth.

The 2001 Windows version seems faster than the NES version even.

The versions would have to be separated on the leaderboards if they run at different speeds, otherwise it is an unfair advantage. A different map layout would have to be separated. Testing the multitude of versions will be a chore.

Well, sure, but that's the nature of games with multiple versions? It's not exactly uncommon. It just seems very odd that neither the original or most recent versions are possible to submit for, only one specific version.

If there's no interest, then fine, but it seems worth at least considering.

Different versions should definitely be different categories, that's typically the case for games of this era since ports tend to be incomparable in timing. What versions would you like me to add categories for?