Android Handheld?

Any good ways to play the game? I just purchased a RG477v but returned it after I couldn't get it working. I tried gamehub and gamenative with my steam install files. Wouldn't launch "invalid handle". I was able to get it to launch through retroarch dosbox pure, but graphics were crap and I couldn't map the controls or get it work. Tried launching from the containers and manually clicking exe and it wouldn't load.