I see what the problem is now, your screenshot of 1942 shows the gameplay screen entirely flat, at the start of our conversation I told you I use an effect in mame to curve the screen, you can also add scanlines and other effects. Im not at the pc atm but im sure a google search will help you on your way, search for "Mame apply scanlines" or something, In the downloads section of this project I also added my mame effect presets but they might not work with newer mame versions as I use version 0.198, in that case if you open the presets with a notepad editor you'll see what I used for effects and the curvature amount.