@mitu I would like to use all three modes for what they are intended for :
Full mode : all options, all games available including experimental
Kiosk mode : options restricted, all clean games avaiable
Kid mode : more options restricted, mature content excluded

My only problem is the method to add kidgame tags in scraped gamelists that doesn't have, without scraping again all data.

Maybe some users here have scripts to add hundred "<kidgame>true</kidgame>" in gamelists ? Then it will be easy for me to uncheck few mature games from emulationstation metadata editing menu.

Or maybe there is a secret feature in an emulationstation cfg file, or a trick, to consider a game that doesn't have a kidgame tag to be a kidgame by default.

Otherwise with Notepad++ I can replace all the

</game>

by

</kidgame>true</kidgame> </game>

You want TWO collections, that's the hurdle.

If you wanted ONE... You could switch off "quick system select" in the ES menu and start ES on the collection. The person wouldn't necessarily see the systems unless they "backed out" of the collection. The system/collection wouldn't change with Left/Right. The person would be able to "back out" with a button though.

I wonder if there was some CFG hack that could make the wording of the systems "blank" and they'd be there, but the people wouldn't know that they could select them. To them it may look like ES is stopping in dead space. (In which case they'd most likely just keep moving left or right.) This is just me thinking out loud. Is this plausible Mitu?

Ya I didn't really want to mess with kid mode for the sake of a handful of roms, but thanks