GameTACT Virtual Emulator Touch Screen Joystick for Android Games that use a Virtual Analog Stick or Directional Pad - Works With Reicast , RetroArch , SuperLegacy16 and More Game Emulators Reusable adhesive design offers quick and easy installation and removal. Works with Reicast , RetroArch , SuperLegacy16 and More Game Emulators Increased control and performance compared to your phone's virtual analog stick Can be used with thousands of mobile games that utilize a virtual controller / analog stick No additional software or batteries required Easily stored when not in use; No bigger than the size of a quarter