There are no rules for the PS1 categories of this game. Can we add rules like when time starts/stops etc?

ok so i was playing this casually and then i went to undo one of my moves, so i pressed the undo button, and for some odd reason, the game started duplicating kings and rooks every time i undo'ed. Also the rooks were moving in odd ways that normally wouldn't be allowed. I didnt know where to post this so I decided to do it here. I couldnt find anyone else that had the same issue and sorry for bad quality and no audio i was on my school computer

I’ve been thinking about buying a toploader nes that is modded to have AV ports, would that be allowed in speedrunning?

Will the Super Mario Bros Game and Watch releasing in November be allowed on the leaderboards? Just wondering

I was looking at this run https://www.speedrun.com/smb1/run/mk3dex5z , and -1 looked suspicious so I asked him if he was using turbo, and I ain’t tryna be a snitch be he said he was using turbo A

I meant to submit a run to golf resort B but I accidentally submitted it to 18 holes!! I am so sorry

shouldn't there be a game rule that states that the timing stops when the credits appear?

where can you download the practice rom for smb 1?