It’s no fun having to search through games when a buddy is over trying to figure out which ones we can both play.
we would need to modify emulationstation to recognize tags like <player> in gamelist.xml and have ES-scraper scraper the # of players from TheGamesDB.net
Then we would need to set up a sort to sort the roms by number of players eg.: all for all games, 2p for 2 player games and plus for more than two player games.
all: would list all games normally
2p: would list all 2 player games then all 2<player games then 1player games.
plus: would list all 2<player games, then all 1 player followed by all 2 player games.