What Retro Games Would You Like To See Me Play?

I've made a tonne of videos showcasing myself playing Minetest and SuperTuxKart, as well as a good variety of other fully libre games.

I'll be frank, I'm getting tired and bored of playing libre games. I think it's time I switch over to playing retro games instead.

The thing is, I have no idea what I actually want to play. I'm thinking anything at least 25 years or older. I'm already making a series for Pokemon Red, so I can't entertain that idea.