@showstopper what theme are you using?

@Jiryn This has nothing to do with linux, I'm a novice at that at best. Get the mednafen_pce_libretro.so.ziplatest nightly from libretro's site. Not sure what's the best version, try armhf or armhf-neon. I use an ssh-ftp client to replace. Rename and replace with the existing binary at /opt/retropie/libretrocores/lr-beetle-pce-fast/ or if you're not lazy, create a whole new folder for it, along with its configs, etc. I'm having my own issues with it because I'm testing retroarch 1.7.9. Some cdrom access error. The binary is from august so I'm thinking it's that. The "fast" version built from source is fine, but it still has the Exile bug. I don't know how to edit the retropie build script to properly build the non-fast version. Keep in mind, the "non-fast" version will be slower, but I don't notice it on my overclocked pi4.

@mitu Thank you so much. This solved my problem. I never knew there was such trouble just copying files. And thanks again for the advice, copying over wifi and ssh 10.000 small files is really a bad idea. :)

@Breadbin As long as the system has 4 working controllers (regardless of how they're connected), it should work. The only possible configuration would be in the emulator options, to enable multi-tap if it's not the default.

@mitu I think it's from the limited specs of the Pi Zero. I was actually really surprised that both CD based systems even worked on a Pi Zero in the first place. Somebody told me that they tried CHD files for both emulators on a Pi Zero and the Sega CD didn't perform well. Essentially a CHD File is a modified 7zip archive, so I'm not really surprised. I will eventually test it myself and update this thread when I know.

@edmaul69 In the end I tried a different game, I hadn't tried others as I'm not a big PC engine fan just wanted to play that particular game, no problem. So I acquired a copy of the game from a different source, and that's running no issues. Must of been a corrupt file or something. Thanks for your input @Darksavior @lostless

I gave my rp3 as a gift , no problem, i solved the problem with a very cheap deal https://imgur.com/a/cZImx

I copied the syscard-file only in the bios-folder and didn't change the names of my cues and bins. Everything runs fine.

@backstander said in Question regarding .pce file format for PC Engine/TurboGrafx-16: Has anyone played the Castlevania: Lords of Shadow games? I have not. The last "new" CV game I played was 'Castlevania: The Adventure ReBirth' on Wiiware, so it's been quite some time. Konami has such a bad reputation these days, that it pays to be cautious. It really is a shame too because thirty years ago they could do no wrong.

you can try with UXS : https://retropie.org.uk/forum/topic/5291/soft-universal-xml-scraper-v2-easy-scrape-with-high-quality-picture

Glad you got it sorted. Happy to help.

I have a pi3 and the retropi setup screen says VER 4.1.10 at the top.