If not, which ones, and how? Can you give me some examples of games?
Thank you for addressing those issues.
About scaling, I can see the same issues that naxeras reported.
"Unscaled" and "Scale aspect - downscale" work perfectly fine.
"Scale aspect - upscale" only works properly with some games, for example Shinobi.
With others, like Bubble Bobble, Rygar and Double Dragon, the screen gets scaled only vertically, the horizontal resolution remains unchanged. Therefore the games shows wrong proportions, the characters are too tall and thin.
Another potential scaling issue is with NeoGeo games, specifically Viewpoint. The screen is upscaled with the right proportions, but it shows some resizing artifacts on straight lines. I'd imagine this to be due to the scaling algorithm that has to be fast, but I thought it was worth to be mentioned.
Another issue: Kung Fu Master has sound effects, but no music.
Thank you for your work on this port.