Content Rotation: Auto|Standard|90° Right|Upside Down|90° Left
Don't make any changes to the D-Pad, keep it as it is
up is up, right is right
Many consoles have aspect ratios that are not suitable for playing vertical shooters or other homebrew games
For example
3:2, 4:3, 14:9
To play such games you usually need a rotating monitor
But many people can't afford a rotating monitor and therefore need this option
https://github.com/SourMesen/Mesen/blob/master/Docs/content/configuration/Video.md Screen Rotation: Rotates the display by the specified angle. This is useful to play games (generally homebrew games) designed for a vertical display.
Screen Rotation; None|90 degrees|180 degrees|270 degrees
Content Rotation: Auto|Standard|90° Right|Upside Down|90° Left
Don't make any changes to the D-Pad, keep it as it is up is up, right is right Many consoles have aspect ratios that are not suitable for playing vertical shooters or other homebrew games For example 3:2, 4:3, 14:9 To play such games you usually need a rotating monitor But many people can't afford a rotating monitor and therefore need this option
