As a suggestion, if possible, to add freej2me java games emulator, some old java mobile games in 320x240 jar format will fit perfectly and look very well in OGS screen.
Common files format for java games are jar format. It will require JDK.
Sorry i can't add "enhacement" label to this issue due to lack of permissions :(
freej2me it's now a core on retroarch which will help to integrate it in RetroOz
It will require to download last jdk version for linux_aarch64.tar.gz from repository first time to run a java game
As a suggestion, if possible, to add freej2me java games emulator, some old java mobile games in 320x240 jar format will fit perfectly and look very well in OGS screen. Common files format for java games are jar format. It will require JDK. Sorry i can't add "enhacement" label to this issue due to lack of permissions :(