melonDS-android VS emu-ex-plus-alpha

I'm not sure it's possible. I had the same problem. You can only hide it completely or change position to the top. but without a gamepad you can't Access settings in-game. If it really bothers you, you can change to MelonDS which is free. (Last updated July https://github.com/rafaelvcaetano/melonDS-android/releases ) I think Drastic developer kind of abandoned the project, since he haven't updated it for 8 months now (I paid for it as well).

MelonDS

MelonDS|Free|Great Compatibility

Ah, you're using the Android version of melonDS? Yeah, the latest version allows managing DSi titles. The PlayStore seems to have it updated already, or you can just grab the .apk from the GitHub page. However, you may not need it.

And to add MelonDS android also supports Retroachievements

I haven't tried it but MelonDS can apparently run DSiWare.

You can download it from here... Its in the artifacts at the bottom of the page https://github.com/rafaelvcaetano/melonDS-android/actions/runs/4864538207

You're in luck! I recently did this for my Surface Duo. There's a nightly build of MelonDS you can build and install which has RA support. Works very well! https://github.com/rafaelvcaetano/melonDS-android/actions/workflows/main.yaml

Drastic https://play.google.com/store/apps/details?id=com.dsemu.drastic is the best choice for DS emulation. It's paid but it genuinely is worth the money. There is also MelonDS https://github.com/rafaelvcaetano/melonDS-android but it's not quite as good but can play DSi games where Drastic cannot.

There's a standalone app for MelonDS.

( > ) NES.emu (free, needs a Github account to download)

If you don't want to use Retroarch then I'd recommend MD.emu. It's paid on the Play Store but you can download it for free from the developer's GitHub https://github.com/Rakashazi/emu-ex-plus-alpha/actions you will need a GitHub account to download.

You probably got unheadered\headerless NES ROM, try headered ones. Also you can try different emulators such as: https://buildbot.libretro.com/stable/1.15.0/android/ https://github.com/Rakashazi/emu-ex-plus-alpha/releases/download/Pre-release/NESemu.zip

Then click this link: https://github.com/Rakashazi/emu-ex-plus-alpha/actions/runs/4880613895

As to specific emulators for the older stuff I recommend the .EMU emulators from Robert Broglia. You can get them all for free on his GitHub page https://github.com/Rakashazi/emu-ex-plus-alpha/actions/runs/4780747948 but you will need a GitHub account to download them. If you end up liking them then you can buy one or more to support the developer.

All of Robert Broglia's emulators can be downloaded for free from his Github page https://github.com/Rakashazi/emu-ex-plus-alpha/actions/runs/4644751720

As for an easy to use emulator go for MD.emu by Robert Broglia. You can get it for free, along with his other emulators on his GitHub page https://github.com/Rakashazi/emu-ex-plus-alpha/actions/runs/4399740415 where you will need a GitHub account to download. If you like them though consider buying them on the Play Store to show support.