Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
and the second edit: Sorry, getting an upload error... It shows the FBA menu, where I change to vertical and play a game...
Hello I repeat : you need to use DIP SWITCHES OPTIONS IN FBA LIBRETRO CORE per-game core option for each game AND TO MODIFY SCREEN OR FLIP SCREEN OR CABINET OPTION only for vertical game. http://blog.recalbox.com/forums/topic/two-configurations-for-fba/#post-33576 I think that the game will rotate automatically. EXEMPLE : Flip Screen option : http://www.mamedb.com/game/gunbird Cabinet option : http://www.mamedb.com/game/1943kai