I’m unsure because a new game would wipe it all out. Like normally if you can do a sort of new game plus you might be able to just save the scores in a set of variables. (which would take forever to code as using the options in gb studio to reset all the variables might just wipe out all saved scores.)
It would have to be programmed manually in C and I’m not quite capable of that myself yet.
It might be neat to have a devlog you can update when people send you high score screenshots.