mangatom

Since no one answered even with "I don't know" or "wrong place on the forum" I tried to do this myself and figure it out. Thanks...

So, there's this ver. of Retroarch focused on shooters called Shmuparch. Found it on an YT channel and by testing some roms it really improve on a few games. Here's the vídeo explaining some things about the emulator (it's on ver. 7, but this video seens to explain better) I can do all that on the video and more, since I do know Retroarch. But I can't seen how I get this to work with Launchbox. I have one game that only works on this ver. and some I wich to change emulator. But by only adding the emulatoir and switching to it the games don't launch at all. Can anyone help me with this?