| Option Category | # # CORE ROTATION OPTIONS # |
| Description | This option will flip MAME's output screen horizontally. This can help if you have rotated a screen and the image is reversed. |
| Full Command | -flipx |
| Alt. Command | none |
| Reverse Command | -noflipx |
| Example | mame64.exe pacman -flipx |
| mame.ini Command | flipx |
| Command Default | 0 |
| Argument Format | <boolean> |