Actually more titles kept slowly disappearing over time the more I keep updating MelonDualDS. Some examples are Flappy Bird DS, So-Nanoka, Alice & Marisa, and DiagnoSe. Trying to launch the game from ES-DE gives an error about not being able to find the file, but it's in the same folder as my other ROMs and I can open the games with RetroArch.
I want to play DS games with my AYN Thor while sharing what is just on the top screen with others when plugged in via USB-C to an external display. But when using MelonDS or MelonDualDS, the external display wants to act as the top DS screen while the top screen of the AYN Thor wants to act as the bottom DS screen while the bottom screen of the AYN Thor has nothing. Is there a way to change this? I want the AYN Thor to still show the top DS screen on the top and the bottom DS screen on the bottom. I am not talking about the mirror mode in MelonDualDS which has both DS screens on the top screen.