Stephen Totilo on Twitter: "The PS4's library of PS2 games is shameful. Doesn't help that it takes 50 (!) button presses to reach the console store's "PS2 on PS4" section. Nor that
List of PS2 Emulated Games that got a physical release on PS4 discs - Wololo.net
Play PS2 Classics (.iso) on PS4 (5.05) - CFWaifu
How to convert PS2 games to work on the PS4. - Hackinformer