I only got twisted metal on the ps5 and then remembered just how blocky the graphics were in comparison but it ran really well, shame the emulators have not been ported out and made use for all games rather than just been customized for each game by sonyseem to be multiple emulators on at least the ps4, with each being optimized for that specific game, so compatibility varies with each. I think the best are rogue galaxy and jak x iirc, but I don't really mess with ps1 or ps2 games on the ps4. I did buy several on the ps5 though, including wild arms, which I got to the final optional boss today, but I haven't fought him yet.