Description
This option will keep the aspect ratio of a games screen despite how you resize a window. if you turn it off then in fullscreen it'll stretch games and fill the screen.
Alternative Command
-ka
Example
mame <gamename> -keepaspect
Command Format
<gamename> -keepaspect. This command has no other parameters.
MAME's Default Setting
On
Opposite Command
-nokeepaspect
-noka