Super Nintendo games are now playable on the PS4 with FW4.05 - Hackinformer
Wololo on Twitter: "This week (Oct 16-23) in emulation: RetroArch fixes input issues on PSVita/PSTV, PS2 port of RetroArch is in development, Switch Overclocking for better emulator performance, PS4 FW 5.05 gets
RetroArch PS4 Official Version Soon, FCEUmm NES Emulator Progress Updates | PSXHAX - PSXHACKS
PS4 Nintendo Entertainment System (NES) Emulator by M0rph3us1987 | PSXHAX - PSXHACKS
The PS4 Into An Amazing Emulation Console! Batocera Linux On A Hacked PS4 - YouTube