Do you use a Logitech USB Gamepad when playing this game? The MAME Emulator game settings can be set up to use it. I should try getting a 2nd game pad sometime to see what it's like with 2 players. It's a shame it doesn't support up to 5 players.
i do use a logitech usb controller to play all of my emulators, logitech is the shit
but i want to get an x-arcade joypad but those are super expensive
but im happy using the controller pad i have. i heard u can use xbox-360 controllers to play most emulatorsd games if you have the usb connector.