Speed Running Nintendo DS Games on a Nintendo 3DS
Are you allowed to speed run a Nintendo DS game on a Nintendo 3DS, or is that against the rules?
I can't imagine why it would be against any rules for the game, but if you want to be absolutely sure, ask the mods for the game you're looking to run.
post in their forums, ask them on social media or just do a run on 3ds and submit it (and hope for it to not get rejected).
although, DS games run just the same on 3DS, so I don't see why you shouldn't be not allowed to.
I recently did a run of a DS game on a 3DS and submitted it. It was approved. So, I assume that in most cases DS runs on a 3DS are allowed.