Also there is a tricky way to get a simple Player VS Cpu fight. You need to check mugen.cfg if AllowBugMode (if I remember well) is =1 (on) or =0 (off). Then it’s better to select Watch mode so you can move with 1P keys on both sides. Make sure you have a keyboard language so you can use numbers which are under Escape (those above Right Ctrl don’t work). When the game is loading, hold Left Ctrl and make sure you’re holding it until you press 1 during the Ready-Fight sequence. Press the number shortly and then you can stop holding Ctrl. If the loading time of the VS screen is too long, there should be a way to manage it in mugen.cfg too I guess.