Is there a way to limit how many periods are played in a game/ edit how much time is in a single period (example below).

[saintsfan2500]

So i'm playing the "6 a-side soccer" ROM, and i was wondering if i could edit the rom so the first 2 periods would be the 1st and 2nd half and the 3rd period would just be 0:00 so the game would end after hitting resume after the end of the second to view the "man of the match". If this isn't possible would there be a way to edit the period abbreviations on the scorebox in the corner so i can get it to say "1H" and "2H"?