@Jiryn
i am using the awesome lr-FBNEO Emulator, which is installed by default, for NEOGEO and most of the arcade-roms.
As a second option i use lr-MAME (current) for those few roms, that FBNEO does not support and i wish to have.

The DIP-Switches can be accessed by a Key-Combo that you can define in Retroarch/Core-Options.
AFAIR this option is called "diagnostic key" and the default input is "holding START-Button" (during gameplay/rom running).

Retroachievements are the cream on the cake imo!
Similar to Playstation-Trophys or XBOX-Achievements, just better (great widgets, leaderboards for all kind of stuff...)
Concerning Arcade-Achievements: only lr-FBNEO is supported, another point for this masterpiece.
As far as you want to play for achievements: keep your fingers away from the DIP-Switches as only default settings are supported (which is more than fair)
Fo further information just have a look here:

https://retroachievements.org/

@redbatman It depends on the reason why it gets bad reviews. Probably the emulation is not good. There are some SNK ports which have bad reputation.

as far as i can tell, this behavior can be different depending on the BIOS. load up a neogeo rom for instance, and you will see a retroarch quickmenu >> options entry you can change to a few different button combinations (Holding Start being the default). then take 1942 for example in where holding start does nothing, and you must activate the service mode from retroarch quickmenu > options then restart the core.

also, there is a line in /opt/retropie/configs/all/retroarch-core-options.cfg

fba-diagnostic-input = "Hold Start"

that might be what you're after.
i'm not 100% certain on all this but i hope it helps point you in the right direction.

@Polezi said in How to change controls for SNK games in pifba:

Do Make a personal config file for each rom wanna work?

No, it doesn't.

I didn't have time to check your issue yet, sorry. Will try it tomorrow.

@bt with retropie once you have everything set up how you like you dont have to mess with anything. On the user side it is truly the friendliest setup.

@udb23 Thank you very much for taking the time to teach, I will try to learn