@paradadf Correct, for reference lets say "controller one" will control P1 and P2 while "controller two" does nothing in the game. In the recalbox menu both controllers work, and in the recalbox controller settings configuration it recognizes them as two separate controllers.
When I have two SNES30 controllers connected via USB and load a two player game, the 'second' controller does not respond and the 'first' controller moves both player 1 and player 2 simultaneously. The 'second' controller is totally unresponsive in the game but works just fine in recalbox menu. Here is a youtube video I made showing the issue: https://youtu.be/HNvomkzje3s
I have tried factory resetting the controller with no success. This occurs whether I simply plug both controllers in and attempt to play the game or if I go through and configure each controller seperately and then set P1 to #0 SNES30 and P2 to #1 SNES30. Any ideas?
It seems that all three SNES cores give the same input lag. POCKETSNES is particularly buggy in that pressing start on my only controller registers as a START from P2 as well. And then P2 just tracks what I'm pressing as P1. Going to dig into Retroarch settings now (video and input drivers perhaps?). The sound is quite odd on this game as well across all three cores, the sounds seem to be reverb or echo expanded. Hard to describe...
Yes input lag. I will try this when I get home!
About 99% of my SNES roms play just fine but Mortal Kombat (USA) is quite laggy. I have tried it with a wired keyboard, wired SNES30, and SNES30 in bluetooth mode. I am wondering... should I be messing with retroarch settings like video driver, etc... Or should I try a different core (I'm set to default now).
If this ends up being a core issue, is there a way to set some roms to play from a specific core and leave the others at default or a diff core?
Thanks as always. Excited to be smoothing out the last few issues while learning some more linux.
I missed that 
I'm excited and working too fast. Does scraper.exe work correctly when used with your batch script?
Yes, that wiki and on Windows 7.
I ran scraper.exe last night using the Wiki guide. I woke up this morning to a folder full of game images but the gamelist.xml file is incomplete. It stops at the first game not found and doesn't keep going after that. Has anyone else experienced this?
I have tried almost everything in trying to remap input for just NES games using the RGUI menu. I go into a game, then RGUI, set my input as I want just for games on this system, and from here there is too many options and save methods to choose. And any of them I try do not persist after restart. In the INPUT menu there are on/off option for REMAP BINDS ENABLE and SAVE CORE REMAP FILE button. Do I need to muck with either of these? And then in the main menu I see SAVE NEW CONFIG and SAVE RECALBOX.CFG. I'm having trouble differentiating all this. I also have not problem doing this manually if there's a guide and it actually works.
I have an RPi with Pluggable brand bluetooth dongle. I successfully paired my SNES30 controller and can use it just fine but with a small not critical bug. After restarting either the controller or the Pi, and then pairing the two with bluetooth, the controller will send an infinitely long button press (often either D-PAD LEFT or D-PAD RIGHT). Or maybe it's not the controller at all and it's the bluetooth dongle or the Rpi. I'm not sure. I can get out of the button press loop by pressing certain other buttons but it's a bit of an annoyance. Any one else experience this? Or have a suggestion?