I have an old Raspberry Pi 1 (!) still going strong with Batocera Linux running NES, SNES and Mega Drive (Genesis) emulators.
I’m looking for easy multiplayer games that can be played with a 5yo. Non violent and ideally co-op, bonus points if somewhat educational.
My Famiclone childhood:
Mario Bros (the first one, with POW block in the middle.) https://en.wikipedia.org/wiki/Mario_Bros.
Battle City, known more by its pirated version name: Tank 1990 https://en.wikipedia.org/wiki/Battle_City