I'm not understanding this thing. Let's start saying that I need this only to run NES, SNES and maybe some Neo Geo and Game Boy game. I tried FCEUmm and is basically perfect. Tried SNES9X and SNES9X Next, they both run great (tested DKC and DKC2) but Next has some very noticeable video artifacts. So, I would just stick to SNES9X, but if you tell me that Next is better, well, I'll need the right settings for it... If I recall correctly people recommended Next over regular 9X in RA.. I still havent' tested Neo Geo and GB. What I'm not understanding is how saving your configuration works. I simply want a different configuration per core, so one for FCEUmm and one for SNES9X. This is crucial, especially for input settings. I'll describe my steps for changing input keys for SNES9X: open retroarch load content (already set the path for roms), I load DKC press home to bring RA menu options core input remapping options I remap the buttons press back press back save new config (I don't believe is necessary, it should save them automatically, but I found out that if I don't save them the result I get is exactly the same as if I save them..), it tells me that my configuration is saved in a snes9x_libretro_wii.cfg file optional: play the game with the remapped inputs the problem is, if I quit RA/load another core then reopen RA/reload SNES9x, RA doesn't load my snes9x_libretro_wii.cfg, instead it shows me is still using retroarch.cfg. So settings actually are SAVED, but NOT USED by RA. If from RA menu i go to configurations, then manually select snes9x_libretro_wii.cfg, RA briefly freeze, restarts itself and then it still shows retroarch.cfg as the configuration file is using. That's not all. Settings under "settings" are indeed saved correctly, as they are effective for every core (at least that's what I *think*). Under "options", nothing is saved. I tried both deleting every .cfg file and changing the config directory path from RA, apparently nothing works. Other issues I got with RA: when changing settings, sometimes it freezes get stuck at "search" (I think it's expecting some keyboard input...) it switches from 4:3 to 16:9 and you can't put it back to 4:3 and have to manually select 4:3 from the TV remote Plus, I read that you'd better use RA with your Wii setted in 4:3 since in 16:9 RA scales the image in a weird way and the image gets 6% wider. Is that true? I put the questions/issues in bold, if anyone else is using Retroarch correctly with these cores, please help I don't wanna use anything else than RA atm, I tried other NES and SNES emulators/VC official wads and they had various other problems and/or performance issues.