I know it's not possible in the game options, and it won't be developped, but is there any workaround to this ?
So far I've tried a .NET Mouse inverter program, and Sakasa.exe
They DO invert y axis in Windows and Qube menus, but not in game.
Oh ok I get it. It's not in "commands" menu or "video" like every other games, it's in a special menu called "FONCTIONS GENERALES" in french.
I was mislead by the menus and the only post about this saying it was not implemented :