hank you will try again later on, now that that I all over with finally I tried to update RetroArchs core. There was a few MAME one and I tried them all with little success. It only plays the very OLD arcade games, where games like Killer Instinct 1 and 2 will crash RetroArch. I would love to top bugging you all with this, honestly. I just don't know why I cant see to get MAME or RetroArch to work with this FE. RetroArch will not open Killer Instinct with any code selected I should mention.
Any thoughts and fixes is greatly appreciated