If you own a PSP or Vita and crave authentic portable PS1 gaming with instant suspend/resume, an EBOOT collection is unbeatable. It is more convenient than RetroArch and more authentic than a Bluetooth controller clipped to a phone.
/PSP/GAME/SCUS94163 - Final Fantasy VII (USA)/EBOOT.PBP psx eboot collection
/PSP/GAME/Final Fantasy 7/EBOOT.PBP