To run G&W, none of this is needed - just roms and artworks. Try to read moar google, maybe you just make a little mistake something)
@svk so I tried for G&W the game starts but itās unplayable because very very slowā¦ yet my phone is a Samsung S20 FE is it not enough hardware ?
Why is it so slow ?
Libretro mame core, when running GW, has very poor performance. Moreover, both on arm and x86-64 architectures. Here in this thread you can read what can be configured - https://www.reddit.com/r/gameandwatch/comments/kpqs09/game_watch_emulation_with_mame_on_retroarch_for/?sort=new Tellingly, in standalone mame x86-64, GW emulation just flyes, by default)
I also had to set the frameskip to the maximum, for arm set it to 10. Only then does it become playable for me on arm. This files in /system/mame/ini/game_name.ini
For game and watch u need to change default speed to 30ā¦ also u can use the updated artwork that includes different views for playing g the handheldā¦I think when I 1st learned all I could get to work was the svg background image onlyā¦also trs80 does work on androidā¦the softlist name u looking for is called coco
@sanchezmike01 hello thank you for your help how to set the speed to 30? with which option ?
Have you ever tried the TRS-80? Is my .cmd file correct ?
Greetings 
Yes I have trs80 workingā¦I havenāt seen your cmd file ā¦to set speed to 30 u have to go to RetroArch options once game is loadedā¦save game config not core configā¦I usually to it on a batch file because itās usually going to be for more than 1 game
Ok I saw itā¦it looks correctā¦but I personally write my cmd files differently to be honestā¦gimme a few and Iāll check k
@sanchezmike01 hello can you try my .cmd file?
On Windows it works very well but not on Androidā¦ I donāt understand ?!
@svk hello I tried your link here for Game & Watch & it worksā¦ not very fast but itās better than nothing!
On the other hand there is an error in the configuration fileā¦ I put the fix below with an example for the game Marioās Cement Factory:
<?xml version="1.0"?>
<!-- This file is autogenerated; comments and unknown tags will be stripped -->
<mameconfig version="10">
<system name="gnw_mariocm">
<video>
<target index="0" view="Unit Only" />
</video>
</system>
</mameconfig>
Greetings 
Sorry I never uploaded ā¦got stuck doing overtimeā¦as far as game and watch I donāt know why u would need a config file with unit onlyā¦I read the tutorial and it is well written and thoroughā¦but if u look for the new updated artworks, u now have the whole device view, the big lcd view only, and the partial device and partial lcd screenā¦id have to make a video to show u as its easier than explainingā¦the only settings I change for these types of games are boot to bios enabled and mame speed set to 30ā¦there are alot of games from g&w , konami handhelds, and a few others so when I make configs , I do them with batch files and are completed in secondsā¦again itās easier to make a video explaining rather than writingā¦
@sanchezmike01 hello yes gladly for an explanatory video because there I still do not understand where to set the speed to 30 ?!
For G&W the Reddit config file doesnāt work for meā¦thatās why I posted the one that works here 
For .cmd files I still donāt have a solution to launch my TRS-80ā¦
Heyā¦made a video and itās like 30 minutes or so , so it took long to finalizeā¦will be uploading today so u can see it on Android for both game & watch and trs80
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https://drive.google.com/file/d/1mSIhG17PuyjRoyv_2QvMZPsryfCnE5ps/view?usp=sharing heres the videoā¦fast forward to see other parts
this video shows trs80 as well as konami handhelds, tiger electronics handhelds, and game & watch and all displaying the different artwork optionsā¦also shows the command file for trs80ā¦any questions, just ask meā¦oh yea everything is for android only and everything u see there all works on android
Hello !
Thank you for the video itās amazing yes everything works on Android 
By cons I did not know that HyperSpin also exists for Android ??? How did you do ?!
Greetings !