This is pretty nice, thanks! While it does run MK2-MK3-UMK3 at 44/53fps aprox. (it just needs the extra push, i guess), it does run all the classic Mortal Kombat games, which is really cool since in all this years this is the first build that i can find that does it. MK and MKLA4 do run full speed. The former has this funny bug where all the voices are replaced by Finish Him The MAME2003-WII-0.3 C core didn't ran any Mortal Kombat game for me, which i found strange. The mame2003_midtunit_libretro.zip performs the same as your build, though it is 1.7.1 based and not complete as yours, so it is safe to say that the one attached here is the better one. This is the only one i have not tested yet. Is there a list that i can find with all those capcom boards? (excluding the CPS systems, of course).