If two people can play on it and it's a valid emulator (like Nestopia or FCEUX) yes.
Edit: FCEUX has since banned due to inaccuracies.
Wish that I realized this was posted 3 years ago before we worked so hard to complete a run in this on FCEUX. Still don't really see where it's mentioned that FCEUX is banned now. But it's fine! Thank you for your time as a mod! <3
edit: Oh okay, I found it on the SMB1 SRC page in the News section. Guess I didn't realize how much research was necessary for this little hack run! <3
Thank you for adding this info to the Game Rules section. I would hate for others to go through the feeling of having weeks of hard week stripped away due to a recent change in rules.
It especially feels like a trivial rejection on a hack run with only 8 submissions, but it's all good!
Listen man. I'm sorry I rejected your submission, but rules are rules and the FCEUX emulator was found to be inaccurate about half a year ago, and subsequently banned from use for SMB1 and ROM Hack speedrunning. Honestly never considered this being an issue here as these boards are rarely used and have never had an FCEUX submission before, so I didn't even think about this situation happening. Please feel free to do more runs on an improved emulator like Nestopia, as you guys can obviously beat the game. I'm tired of seeing these patronizing posts on my forums. I understand your frustration, but this is not the way to go about it.