A full version program for Android, by Retro Game Emulators.

Retro GEN Pro MD Emulator is an Android emulator for the classic game console, the Genesis/Mega Drive. You can play your favorite games on Android devices like mobile phones or tablets. The application is free to use, and you don’t need to pay to download and install it.

It is an open-source emulator designed to run the games from the original Genesis/Mega Drive console. It will work on most Android devices running Android .5 or above. It is an entirely open-source project, meaning you can modify the source code to make it your own.