If at any point of customization the input includes listings for 'Gun X/Y' when not intending to set up a light gun, the light gun may be picking up enough IR light that it is being activated. On a cabaret arcade the keyboard is on a shelf behind the front access door, and cocktail arcades have the keyboard behind the side access door attached to the PC. For Retro edition, Fighter edition, Vision 29, 32, or 40 arcades the keyboard will be located in a pull out drawer under the control panel. A default input should be listed in white text, while a custom one will be in grey. In case an input needs to be reset, highlight the input, then on the keyboard included with the arcade press the Delete key twice, first to clear it then to reset it to default. To assign multiple buttons to a single input, keep the selection on the same input and repeat the steps of blue lighted button, press button and wait. If the input lists multiple letters, directions, or symbols then the input will need to be reset and assignment tried again. If the input was properly accepted, you should see a single letter, direction, or symbol listed to the right. To change an input, highlight the input and then press the blue lighted button, then press the single button or joystick direction you'd like the input assigned to then wait. It is suggested that any control labeled 'Lightgun X/Y Analog' or 'Trackball X/Y Analog' be left alone unless the game is not functioning properly, as setting these entries can be difficult. While the actual actions of the buttons used will only be generic labels, basic testing in game should help figure out what each button is assigned to do. The arcade's basic controls are set to work as a keyboard, so every entry will list a keyboard input on the right side if assigned to anything other than the trackball or optional addons such as a light gun or spinner. In the 'Input (This Machine)' entry there will be only the relevant controls for the game that are loaded. When changing the controls, only choose the 'Input (This Machine)' option, otherwise other games may end up with unplayable or incorrect controls. In this menu, the player 1 joystick will move the selection, while the blue lighted button will select entries and the red lighted button will exit or cancel. While the game is running, press the green lighted button to open the MAME settings menu. If there is a game you'd like to alter the controls for, begin by opening the game and having it running. While most downloaded arcade games should work with the default controls, some may not play in an intuitive way or be laid out like the original arcade cabinet.

Mame os x keyboard setup