How to play PlayStation 2 games on PlayStation 4 - YouTube
How to convert PS2 games to work on the PS4. - Hackinformer
PS4/PS5 Release: 1-click emulator for PS4 9.03+ and PS5 (Mast1c0re) - Wololo.net
Amazon.com: Retro Game Console with Built in 4280 Top Games, Emulator Console Compatible with PS4/PS3/PS2/WII/WIIU/PSP, 2TB External Hard Drive with LaunchBox System, Portable Game HDD with 18 Emulators : Video Games