@lesk said in Making a custom game that randomise NES games to play?:

My question... Is it possible to do a similar thing for retropie?

Not without creating a new game, which is what Nintendo did.

@sugarfree thanks! Good to know there is a way to do this from the terminal window. I ended up following the instructions from this video to reset the emulation station input configuration for the controllers.

@mitu the "O" button.

@Rocket I would suggest probably a different rom source. If these are for sure known-good roms (for example working in another emulator on a PC), then please supply a verbose log of one that isn't working in RetroPie.

https://retropie.org.uk/docs/Runcommand/#launch-with-verbose-logging

@JimmyFromTheBay said in Can the Konami Arcade Advanced ROMs run on an NES emulator?:

running them on an VTxx emulator

Fixing your typo.

I'm not saying there are no VTxx emulators, you know at the very least about one (MAME/MESS). There might be others.
You seem to think that it's normal for an emulator to support every kind of similar hardware, but it's not (e.g. most console emulators are unable to emulate their arcade counterpart).

Edit : i found this old topic : https://forums.libretro.com/t/which-core-would-you-best-recommend-to-play-old-nes-bootleg-games/36763

@mitu So where i can ask?

@mitu

I figured it out!

Turns out, the zip contained .unh files, which is not supported. I've got some new files and it's up and running. As of n64, I had to unzip each file to get them to run.

Bonus question: is there something I can do to get n64 to run more smooth (rpi 3 B+)?

Again, thanks for taking your time. And for future googlers, hope this help you out.

@sleve_mcdichael said in In-game saves in Zelda 1&2 NES (lr-fceumm):

Can you clarify? You're using the (Rev 1) rom and you're seeing saves persist? Here is the rom that I am using (md5sum):

No, the ROM file I was using for test doesn't have the Rev 1:

md5sum Legend\ of\ Zelda\,\ The\ \(USA\).zip ba3737710651036dbb3b28b88b9dfbb0 Legend of Zelda, The (USA).zip

Some of the palettes are built-in into the emulator and they don't have a file on disc associated. Only when you choose custom as the core option you need to provide a palette file in the BIOS folder.

The name of the file depends on the emulator, if you're using the default NES emulator (fceumm), then the file must be named nes.pal, see https://docs.libretro.com/library/fceumm/#custom-color-palettes. If you're using the nestopia core, the file is named custom.pal.

Whats strange is if I play Castlevania on my desktop in Mesen at 1x scale this same phenomena occurs (its not an aspect ratio or integer scaling issue either, those settings dont alter this in anyway) At 2x you can still see it happen but not as apparent. 3x and up it doesnt happen. But if I record gameplay at 4x then open the video in VLC and set zoom to 1/4 bringing the image back down to 1x, there it is again!

What the heck is going on here? Is this some sort of lcd pixel refresh rate thing? It happens in games like Castlevania, 8 Eyes, and Ninja Gaiden, but not Super Mario Brothers. It also happens in other system games like Rastan for Sega Master System. And changing the emulator/core doesnt affect the outcome.

I would love to know exactly what causes this.

@mitu said in Unsupported mappers for all LibRetro-based NES emulator:

The game seems similar to San Guo Zhi (Ch), which is using the 252 mapper and works (at least with Mesen and Nestopia):

Thanks for confirming. I got my hand on that other rom using mapper 252 and i can confirm it works properly on my side.

Yeah, unfortunately knock offs are rarely great. My SN30 Pro is my favorite since it combines the old (SNES shape and layout) with the new (L2, R2, and dual analog sticks).

I have a couple of Vilros NES USB controllers and they aren't bad. They aren't high quality by any means, but they do the job better than other clone controllers I've owned.

Yeah I also encountered this issue after updating everything. Reinstalling doesn't solve it. The theme probably needs to be updated by the creator.

@deguzler said in NES Roms not loading:

[libretro WARN] Not an iNES file!
[libretro INFO] FCEU_MakeFName: /home/pi/RetroPie/BIOS/disksys.rom
[libretro WARN] FDS BIOS ROM image missing!
[libretro WARN] An error occurred while loading the file.

It doesn't detect your rom file as a nes file, so it thinks it might be a fds file, for which you are missing the bios (it's not a fds game anyway, 10 yard fight was not released on fds). Your rom is probably corrupt, but if you are confident it's not then you can always try it with another nes emulator (nestopia or mesen are probably way better choices on a pi4 anyway since they are more accurate and pi4 should be able to handle them).

@dynamight picodrive has always been the default megadrive emulator for pi 1/0. pi1/0 versions of retropie don't really have any emulators/software related to other pi models installed by default. that's why there's different image downloads.

emulators can increase in accuracy and requirements, but the ancient versions used for pi1/0 shouldn't.

I just want to follow up on this because it is still the first result for me on Google when I search for "RetroPie Power Pad."

lr-mesen and lr-fceumm both support all of these games now. lr-mesen assigns the 12 buttons to joypad buttons, while lr-fceumm assigns them to keyboard keys from RetroArch's RETRO_DEVICE_KEYBOARD type.

I am using two generic USB dance pads side by side. They are recognized as controllers, and I find it easier to map the buttons in lr-fceumm for my specific setup.

lr-fceumm allows the Power Pad to be assigned to ports 2 and 3 natively, and the user can use the Quick Menu -> Options -> Controls menu to set the appropriate RETROK keys to each physical button (you go to the physical button in the list for the port that you want to map, and you scroll left/right until you find the right keyboard key).

The Family Trainer is a Famicom Expansion Port device and is therefore available for port 5. RetroArch's "map to port" feature allows the user to duplicate port 5's functionality on another port, so two dance pads can be combined this way.

I know that all of the North American Power Pad games work fine with lr-fceumm. Just make sure you have the correct Power Pad side mapped! The buttons will be mirrored if you use the wrong side (it's the equivalent of flipping the mat upside down).

I know for sure that Family Trainer 5 (Meiro Daisakusen) and 8 (Takeshi's Castle) work fine (even the English-patched version of 8). The other eight Family Trainer games should also work fine. Here's hoping someone is interested in tackling an English translation for 9 (Takeshi's Castle 2)!

Nevermind, it's solved. Problem was in the connectors...
Topic can be deleted.

@ropgar id be happy to test with a usb nes controller if that would be helpful.

@unknown FYI. The Famicom disk system (the floppy disk thing) also uses the same NES emulators