This may introduce stuttering to the animation. Use this if you feel that the game animation is too slow. This may introduce slow down as a result. Use this if you feel that the game animation is stuttering too much. Saves can be bound to both letters and numbers.ĭecreases the frame skip by one. Requires an additional keypress to identify the state, similar to the load option above. If support is not enabled for a given driver, you will receive a warning when attempting to save or load.Ĭreate a save state. Note that the save state feature is not supported for a large number of drivers. You will be requested to press a key to determine which save state you wish to load. Toggles cheat mode on and off if cheats are enabled. When you press this button, most games will pause momentarily and then behave as though the machine was just turned on, cycling through a display test if the game possesses one.ĭisplays the graphics mode. Not all games have a service mode if not, check the Dip Switches option under the Tab menu. Likewise, to leave service mode, you must press F2 once more and press F3 to return to the game. If you wish to enter service mode, you must press F2 once, and then press F3 to reset the machine so that it actually enters the service mode. Service Mode is where many arcade operators could test the controls and display of a game cabinet, as well as adjust certain settings that were not made available through dip switches. This typically toggles the Service Mode switch from off to on, and then from on to off. This is only for lightgun games that make use of crosshairs to indicate where your lightgun is pointing. Toggles the display of crosshairs on and off. While paused, press Shift + P to advance the screen of the game by one frame. The screen will darken by a certain amount to indicated that you are paused. Use Enter key to reset a value to its default. Some parameters adjust with finer or coarser control if you hold down the Ctrl or Shift keys while pressing ←/ →. Use the up and down arrow keys to select which parameter to modify (global volume, mixing level, gamma correction etc.) Use the left and right to arrow keys to change modify the value. See the MAME menu below for more information. Toggles the display of the MAME menu on and off. See Playing MAME for more information on how to reassign inputs.) The following guide presents the more commonly used keys (according the their default assignment, which you may change at any time in the Input (general) menu of the in-game menu.

Other keys can be used to get information about a particular game.

Certain keys can be used to change the way MAME behaves while you are playing a game.

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