After some hard debugging on 2 computers, comparing games for missing CARD stuff, I managed to fully modify the .MAP file for SSBM and now, you can load/save on mem cards! The only problem found is the ingame timer not working (played time, power time, etc.) everything else works like a charm
see attached shots for proof and the map itself is attached too.
How to install:
simply extract the GALE74.MAP from the zip and put it in your dolwin/data/ directory, overwrite if it already exists.
WARNING!: I found a bug while testing (Posty reported a similar problem but I think that's that one I've got) the game won't load if all the 4 gamepads aren't enabled 9it will stay at a grey screen)!! You NEED to enable them all to boot the game, I dunno to what it's related but I'll prolly find a way to fix that one day. I'm not sure, but anyway, who cares, you can play like you want and save Even with 4 players!
SIDE NOTE: the image I have is shrinked, if by all I said you can't make it work, it's prolly why, just report, I will try to get it back and don't shrink it, then make back the patch and the map.