Reply To: How can I make games full screen in Mame Advance?

[petrockblog]

If the game was originally meant to be more vertically stretched and displayed at 4:3, then there is no quick fix due to the modifications in the retropie version – it assumes square pixels and only offers a few scaling options. I added some workaround for games like blasteroids where you can choose a doubled y ratio to fix it. I could perhaps add some additional video ratios. Final fight looks fine though on my screen.