Reply To: Flipping screen in game

[Floob]

This may help for screen flipping in MAME:

Mame4all-pi with PS3 Controller

Here is a retroarch setting

# Allows libretro cores to set rotation modes.
# Setting this to false will honor, but ignore this request.
# This is useful for vertically oriented content where one manually rotates the monitor.
# video_allow_rotate = true

I’ll give it a quick whirl now.