Did you know it is possible to emulate PlayStation 1 games on an Android device? Yep, this can be done by having all the correct formats for the PS1 games as well as the ISO.  

ℹ️ Make sure you have ROMs already before you proceed.

⚠️ Disclaimer:

Note -- all the steps are the same for all emulators, they are just a different format. The format I'd recommend is “.BIN”. I suggest it as it is the format the Sony has used for the PlayStation 1 console. You'll also need the ISO for it depending on the games, but for a basic on, the app "ePSXe" will have it, you can purchase it from the Google Play Store.

ℹ️ Make sure you have ROMs already before you proceed.