I didn't get multiples of characters on purpose.
To config things like resolution and input, among other things, go to the data folder and open mugen.cfg to edit. The game was rared up with Mugen being in the C: directory. The last square on the character select screen is the random selector. Like I said, I'll be checking for people to tell me who I missed so I can add them. I searched far and wide for some of these. However, there are some surprises in here as well, as far as characters and stages. So, Geese, Iori, Terry, those are givens. I'll be the first to admit I bypassed a lot of SNK characters, primarily because I've never been that involved in their games other than the Capcom vs SNK games. Can people direct me to what characters I've missed. So future apologies to people who can't get some characters and/or stages to work. I tested compatibility on two on my PC's. You need to download from all 4 to complete the file.