As a veteran game, you will surely miss those classic retro games, but these are not currently available in the App Store, to play them, we need to install various game emulators on the iPhone, the below is a detailed tutorial guides you how to install those game emulators, such as GBA4iOS, Emu4iOS, NDS4iOS, OpenEmu, iOSEmus, SNES4iOS and RetroArch.