ePSXe for Android is a very modest version of the classic Playstation One emulator for PC that works perfectly on Android devices.
Without a problem, the emulator allows you to play the greatest games such as Tekken 3, Final Fantasy IX, Ridge Racer, Crash Bandicoot, Syphon Filter, and even metal Gear Solid. Depending on the game, the controls can be pretty easy; but you won't have such a good time with games that need the R1 and L1 buttons.
Controls aside, the compatibility list is very good, even though (like always) the user will have to be the one to get the BIOS file and load the games onto his his device.
As expected, you'll enjoy the application more on a device with a bigger screen, which won't just let you enjoy a bigger image, but also easier controls.
ePSXe for Android is one of the best emulators you can find for Android mobile phones, as it gives you the ability to enjoy a spectacular catalog anytime and anywhere.