i want to run this game but the only version i can currently play is the arcade one,so maybe separate nes and arcade by making them sub categories

Mappy arcade is completely different game (different code) than arcade version, so it should have separate leaderboard rather than being on the same board with NES version. As soon as you do run of arcade version you can request new leaderboard via support hub ( https://www.speedrun.com/knowledgebase/supporthub ) .

my request got accepted
https://www.speedrun.com/mappy_arcade/full_game?h=5_Rounds&x=vdon51vk

@Lando_BlandoLando_Blando why is it a category extension? It is not one at all

i tough it would work as a category extension since its the same game but in another platform,ill request speedrun.com to change it

done,its not a category extension anymore

The NES version got released as part of Namco Museum Archives: Nintendo Switch, Windows, PlayStation 4, Xbox One